Australia Car

Australian car repair Issues? Ask an auto mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

I have a 2006 Toyota Land cruiser 4.7v8 petrol/LPG. Engine…

Customer Question
Hi - I have a...
Hi - I have a 2006 Toyota Land cruiser 4.7v8 petrol/LPG. Engine light came on,started running rough and fuel consumption increased. Replaced cat converters and sensors, replaced air flow meter, spark plugs and 1 coil. Ran well for awhile, now doing the same and plugs on one side burnt again after 3 months. Replaced spark plugs and swapped new coil to other side. Running well again but suspect it will throw codes again. I keep throwing money at it for a process of elimination but hope you might be able to nail the problem once and for all. Bought it at 130,000 K's, now done 179,000 k's. It has been religiously serviced and maintained since birth according to log book and me as the new owner
Submitted: 2 years ago.Category: Australia Car
Show More
Show Less
Ask Your Own Australia Car Question
Answered in 8 hours by:
2/22/2016
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago
Ron
Ron, ASE Certified Technician
Category: Australia Car
Satisfied Customers: 38,833
Experience: ASE Certified Tech
Verified

Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

If you can give me the actual fault code that keep returning I will see if I can help you with this. Post back with a complete list and we can work from there.

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - test codes thrown were PO300 /PO304/PO308/P0102 and PO113. Air flow meter was renewed at this point but then it threw codes PO300/PO304 and PO308. At this point, have renewed spark plugs again and swapped new coil pack to opposite side and reset codes - am just waiting to see what it throws now. Have explained in my enquiry all the other stuff I have replaced.
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago

Okay the code P0300 /P0304 and P0308 are misfire codes. Is it still misfiring?

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - engine light starting to flicker again. Will have codes checked again as soon as I can and will get back to you with the readings - that may be later today or tomorrow. Will advise ASAP
Customer reply replied 2 years ago
Hi Ron - today the engine light came back on and stayed on. Threw codes 300 random misfire, 302 and 303 pending and 304, 306 and 308 as before. Will run another check tomorrow afternoon and get back to you. In the interim, do you have any thoughts. Am thinking replace all the coils on the bank on one side that is consistently giving the same readings.
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago

This type of misfire is in most cases either failing coils or bad spark plugs. Let me know the results after you replace the coils but also be sure to have a look at the spark plugs as well.

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - have already replaced the spark plugs for the second time in 3 months. Will check codes again this afternoon and will tell you what codes come up. Then will replace coils and see what happens. Will get back to you after that too.
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago

Okay Im here if needed.

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - getting coils fitted so will get back to you as soon as possible. Thanks
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago

No problem. Thank you for the heads up.

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - put 4 new coils on one bank but engine light is back on. Will put 4 new coils on the other side this week and see what happens. Will get back to you after that.
I cannot rate you yet as we haven't finished with the problem, it's just taking a bit of time as we eliminate things.
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago

No problem, post back when needed and we can work from there.

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - all 8 coils replaced. Engine light back on within 20k's. Code thrown was 430. Vehicle going well but still a little rough at idle. Any ideas??
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago

If you are sure you now have good spark as well as injector pulse and its still running rough then have you checked to make sure there are no engine vacuum leaks in and around the intake manifold?

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - yes all checked and OK. Only thought I had was about the variable cam sensor unit - thoughts please? Have replaced just about everything else.
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago

In most cases if there is a problem with the cam sensors you will get a fault code. When you say your getting a code 430 do you mean you have a P0430?

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - yes PO430
AU Auto Mechanic: Ron, ASE Certified Technician replied 2 years ago

The P0430 indicates a problem with Catalyst Efficiency Below Normal (Bank 1) and in most cases the problem is cause by a failing converter.

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Hi Ron - both cat converters have been replaced. Did that when problem started in October. As I say have replaced just about everything that is why I was thinking the cam timing sensor is just about the only thing left and thought it may be causing the rough idle. But as you say it should give a reading. Have come this far so will replace it and see what happens. Will get back to you after fitting that cam timing sensor. In the meantime, do you have any other thoughts? Is it possible it is the main computer?
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with an au auto mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Ron Your Own Question
Ron
Ron
Ron, ASE Certified Technician
Category: Australia Car
Satisfied Customers: 38,833
38,833 Satisfied Customers
Experience: ASE Certified Tech

Ron is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

< Previous | Next >

Meet the Experts:

Curtis

Curtis

Australia Car Mechanic

1,614 satisfied customers

Qualified Automotive Mechanic, LPG & Airconditioning Diagnostic Technician.

Glenn Bradley

Glenn Bradley

Australian Car Mechanic

699 satisfied customers

Ex Transmission Shop Owner, Driveline Specialist, 30+ years in the Australian Automotive Industry

Scott B

Scott B

Australia Car Mechanic

478 satisfied customers

Qualified Automotive Mechanic, Service Manager & Proprietor 20+ years

Technopro

Technopro

Australia Car Mechanic

149 satisfied customers

20 years of experience in Automotive Repair Techniques and Diagnosis Expert.

Matt

Matt

Engineer

960 satisfied customers

Automotive Engineer for 20 years, BEng hons degree,

Mark

Mark

Mechanic

618 satisfied customers

29 Years as a Vehicle Mechanic in Australian Military

Mechanic Martyn

Mechanic Martyn

Australia Car Mechanic

325 satisfied customers

Advanced trade certificate in Automotive engineering

< Previous | Next >

Related Australia Car Questions
When it runs its black smoke, wont rev and stalls out. is ba
when it runs its black smoke, wont rev and stalls out. is ba 05 not illuminating engine light … read more
Gary
Gary
Senior Technician
Vocational, Technical or Trade School
101 satisfied customers
1996 80 series fez-fe 4.5 land cruiser has no power low rpm
1996 80 series fez-fe 4.5 land cruiser has no power low rpm and back firing at 2500 rpm Ihave changed spark plugs new leads and ciol has no vacuum leaks inspected vacuum control valve it works ,plunge… read more
rpmdiag
rpmdiag
High school
7,865 satisfied customers
I had my fuel injectors seals replaced in Moree, but now I
I had my fuel injectors seals replaced in Moree, but now I am getting again fuel leaks. I have turned off my fuel pump and I am now running on lpg gas. I need to have somebody to take a look at my eng… read more
Matt
Matt
Engineer
Bachelor's Degree
960 satisfied customers
My 1996 Cherokee ltd 4.0l (with an lpg conversion) running
my 1996 Cherokee ltd 4.0l (with an lpg conversion) running intermittently badly. chokes coughs backfires and then if I pump the fuel it goes again sometimes runs well. idles inconsistently. It has nea… read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
My names ***** *****. I've got a '95 EF FAIRMONT. We've
Hi my names ***** *****. I've got a '95 EF FAIRMONT. We've done plugs, leads, coil pack, battery, checked fuses, & 2nd hand 'dizzy/module' but still no spark. I've been looking at other peoples posts … read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
Holden Commodore ute: , VR V6 ute, ran well, until the radiator
Hi, VR V6 ute, ran well, until the radiator burst (top right side). The radiator, heater hoses, radiator hoses, heater tap, temperature sensor, spark plugs, leads, coil pack, oil filter, fuel filter, … read more
Mark
Mark
Mechanic
Vocational, Technical or Trade School
618 satisfied customers
i have an holden rodeo 2002 3.2 V6 dual fuel, On lpg the engine
i have an holden rodeo 2002 3.2 V6 dual fuel, On lpg the engine runs very good but on petrol when im at cruising speed after 10 or 15 minutes the engine loses power and if i leave the throtle in the s… read more
Matt
Matt
Engineer
Bachelor's Degree
960 satisfied customers
Hi, I have a 03 BA Falcon wagon inline 6. Drives fine except
Hi, I have a 03 BA Falcon wagon inline 6. Drives fine except when going up a hill and foot is down about 1/3 to 1/2 then it starts to miss or feels like surging. Over time and trying to diagnose the p… read more
Mechanic Martyn
Mechanic Martyn
Australia Car Mechanic
Vocational, Technical or Trade Scho
325 satisfied customers
forfd EL: Hi there, I have a 1997 EL falcon station wagon 6cyl.
Hi there, I have a 1997 EL falcon station wagon 6cyl. dual fuel factory (Tickford) LPG that wont start. A bit of history: Thursday, I jumped in the car(the engine was running) and accidently stomped o… read more
Mechanic Martyn
Mechanic Martyn
Australia Car Mechanic
Vocational, Technical or Trade Scho
325 satisfied customers
3 Ford Falcon: vehicles..85K, the 3rd one gives us..backfiring..warms
We have 3 Ford Falcon FG's dedicated E-gas vehicles in our service fleet, one rather new done 10K, 2nd one done about 85K, the 3rd one gives us trouble with starting, backfiring etc till it all warms … read more
Glenn Bradley
Glenn Bradley
Australian Car Mechanic
Vocational, Technical or Trade Scho
699 satisfied customers
Falcon: cold easily,then idles and runs great..runs fine..petrol
Hi I have a 96 EF XR8 Falcon with a AU11 XR8 engine in it and a recent(4months)LPG conversion. The engine starts from cold easily,then idles and runs great untill it becomes fully warmed up then stall… read more
Curtis
Curtis
Australia Car Mechanic
Vocational, Technical or Trade Scho
1,614 satisfied customers
The gas/air mix in the inlet side ( during acceleration) only..Spark
What ignites the gas/air mix in the inlet side ( during acceleration) only. Spark to ignite in inlet side. 1. Valve timing. 2. Ignition timing- advanced. 3. Gas leak to outside ( aircleaner to manifol… read more
James
James
Vocational, Technical or Trade Scho
576 satisfied customers
Ford Falcon: petrol pump started missing at low revs (No.6 cyl)
I hope you can help me with the following problem I have. I have a Ford Falcon EL s/w with dual fuel, and had failed petrol pump started missing at low revs (No.6 cyl), worsening over time. Replaced p… read more
Curtis
Curtis
Australia Car Mechanic
Vocational, Technical or Trade Scho
1,614 satisfied customers
VR V8 ute to lpg, most likly injected gas..It gets @ 10ltr/100ks.
I'm considering converting VR V8 ute to LPG, most likly injected gas. The motor is stock w' pacemaker headers, has 170,000 K's and typically does highway miles while loaded with 200-600 kg of product … read more
Curtis
Curtis
Australia Car Mechanic
Vocational, Technical or Trade Scho
1,614 satisfied customers
100 s: recently bought..hatchback..was a v6 3 litre..fuel injector
Hi i recently bought a 2006 holden viva 2006 model 4 speed automatic hatchback and i filled the tank up to full and only got 350ks out of tank yet ive read reviews it should only use up to 10 litres f… read more
Mark
Mark
Mechanic
Vocational, Technical or Trade School
618 satisfied customers
wagon: 2 kms..bonnet and it was sparking..wont start..new coil
Hi i have a ED wagon and i went through a large puddle and the car back fired and went for another 2 kms missing and backfireing, i pulled over and lifted the bonnet and it was sparking out on the coi… read more
Dave
Dave
workplace assessor and trainer
Vocational, Technical or Trade Scho
18 satisfied customers
TOYOTA: day..SR5..major work done to the engin..000 kms
G'day, Below is a advertisment for a TOYOTA HILUX SR5 which i am thinking of buying, the seller can not answer my questions. My question is would like some indication at what point in kms, do these ve… read more
Mark
Mark
Mechanic
Vocational, Technical or Trade School
618 satisfied customers
We have a VT commodore wagon on LPG. Have been having problems
We have a VT commodore wagon on LPG. Have been having problems with the car stalling (not idling very well) and it sometimes stops while driving. This is on LPG and on petrol. Have also had backfire p… read more
Matt
Matt
Vocational, Technical or Trade Scho
80 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x