Australia Car

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

Ask an Expert,
Get an Answer ASAP!

I have changed crank sensor and fuel injectors but this

Customer Question
problem only occurs on no...
i have changed crank sensor and fuel injectors but this problem only occurs on no 3 cylinder and my thought it would be ecu unit as this is what controlls injectors and to have so many codes at once with no engine light on is it possible to be the ecu
Submitted: 2 years ago.Category: Australia Car
Show More
Show Less
Ask Your Own Australia Car Question
Answered in 3 minutes by:
1/18/2016
AU Auto Mechanic: Gary, Australia Car Mechanic replied 2 years ago
Gary
Gary, Australia Car Mechanic
Category: Australia Car
Satisfied Customers: 2,013
Experience: Senior Technician
Verified

Hi Garry,

What make/model and engine?

Have you done a compression test on all cylinders with all spark plugs out?

Do you have injector pulse on the cylinder 3 injector plug?

Your fault could be the ECU, but I need to ask these questions first to see where you are.

Gary

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Checked injector circuit and it was ok and when no3 cylinder completely fills up with petrol when I try to start the engine won't turn over so I removed all spark plugs only no3 had an issue and cranked engine and it forced out all the raw fuel and there is multiple codes and the check engine light doesn't stay on with codes replaced crank sensor as this was one of the codes po335-po115-po110-po123-po223 and when tried second time it happened exactly the same again I am thinking maybe the ecu is faulty as it controls the fuel injectors and by the way on the first time this happened I changed injectors thinking it might be faulty but to no avail
Customer reply replied 2 years ago
2005 outlander with 4g69 mixed engine
AU Auto Mechanic: Gary, Australia Car Mechanic replied 2 years ago

Ok.

Have you got a noid light, for testing injector pulse?

Sounds like the injector circuit is on at all times, instead of pulsing.

The injector control circuit could be grounded within the harness, or the ECM is faulty.

Gary

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
I checked the wiring and it tested ok so does this mean the fault will be more likely the ecu as it controls the amount of time the injector stays open and the manual shows transistor in Ecu unit switches injector on and off and can these be replaced
AU Auto Mechanic: Gary, Australia Car Mechanic replied 2 years ago

If you have proved the engine, and all other components are ok, and the engine runs on 3 with the injector disconnected, AND a noid light stays lit instead of flashing, then yes the fault is internal of the ECM.

I would get an exchange ECM.

Repairs are out of the scope of the average home mechanic.

Gary

Ask Your Own Australia Car Question
Customer reply replied 2 years ago
Thanks
AU Auto Mechanic: Gary, Australia Car Mechanic replied 2 years ago

Hi Garry,

I hope I have been of assistance to you today.

All the best to you.

Regards

Gary

Ask Your Own Australia Car Question
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 Gary Your Own Question
Gary
Gary
Gary, Australia Car Mechanic
Category: Australia Car
Satisfied Customers: 2,013
2,013 Satisfied Customers
Experience: Senior Technician

Gary 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
04 vz commodore, while driving began to get rough like one
04 vz commodore, while driving began to get rough like one cylinder stopped firing. Had previously changed #1 coil because it had failed 6-8 month ago. Stopped and re-started but worse like 3 cylinder… read more
Gary
Gary
Australia Car Mechanic
Vocational, Technical or Trade School
2,013 satisfied customers
I have a 1997 toyota Prado tx 1KZ engine. has a severe
Hi i have a 1997 toyota Prado tx 1KZ engine. has a severe overfueling problem. no problem when cold, once warm very smoky with overfuel on accelleration, not too bad with easing of throttle, reduces d… read more
Matt
Matt
Engineer
Bachelor's Degree
960 satisfied customers
Matt. Same problem as others. 2008 Mazda bt50 3litre diesel
Hi Matt. Same problem as others. 2008 Mazda bt50 3litre diesel not starting. Was taking longer to start, add a good jump pak & would start better but now no start. had a good used starter from a range… read more
Matt
Matt
Engineer
Bachelor's Degree
960 satisfied customers
I am looking Captiva specialist. The z20s diesel. My car has
I am looking for a Captiva specialist. The z20s diesel. My car has an intermittant stumble/miss.It idels away nicely for about 15 seconds then brakes into this stumble. It will stumble for about a min… read more
Gary
Gary
Australia Car Mechanic
Vocational, Technical or Trade School
2,013 satisfied customers
I have an EL falcon wagon, dual fuel, with a Gasresearch
Hi. I have an EL falcon wagon, dual fuel, with a Gasresearch system that has been on for about 10 years, professionally fitted. The problem I have is basically the car is not starting. Symptoms: (this… read more
Matt
Matt
Engineer
Bachelor's Degree
960 satisfied customers
I have a 2005 outlander with a 4g69 mivec engine and it was
i have a 2005 outlander with a 4g69 mivec engine and it was running rich as you could smell fuel out of exhaust and when i turned it off and tried to restart the motor wouldnt turn over removed spark … read more
Doug C.
Doug C.
Technician
Vocational, Technical or Trade Scho
49 satisfied customers
Mitsubishi Lancer 2001 GLXI 1.8 litre petrol. Car stopped
Mitsubishi Lancer 2001 GLXI 1.8 litre petrol. Car stopped running replaced fuel pump and spark plugs car ran fine for 2 weeks Daughter changed oil in motor and car wont start. Fuel up to injectors 12 … read more
Doug C.
Doug C.
Technician
Vocational, Technical or Trade Scho
49 satisfied customers
I have a Mitsubishi Nimbus 2000 model. sometimes, when I am
I have a Mitsubishi Nimbus 2000 model. sometimes, when I am going up a hill, the car loses power. A yellow, engine alarm light comes on and the car continues to lose power until I pull over and turn i… read more
Matt
Matt
Engineer
Bachelor's Degree
960 satisfied customers
Subaru Liberty: ThereI have a tricky one. I have a 1994
Hi There I have a tricky one. I have a 1994 subaru liberty engine Ej22 NA. It cranks but wont start thanks Paul… read more
Gary
Gary
Australia Car Mechanic
Vocational, Technical or Trade School
2,013 satisfied customers
ford ranger 4x4: My 08 ford ranger 3 litre diesel will only
My 08 ford ranger 3 litre diesel will only start when its pushed in reverse im 68 klms from nowhere have changed crank angle sensor but it still wont start by the key or by towing foward… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Holden Commodore Ute SS: Hi Andrew I have a VY SS Ute that
Hi Andrew I have a VY SS Ute that will crank but will not start. I have 12V at the injectors but no earth with the reds on or when I crank (pulse earth). I have spark, the car fires when i spray aeros… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
N13: I have a 91 N13 pulsar 1.6l auto it will crank but not
I have a 91 N13 pulsar 1.6l auto it will crank but not start, when you turn the ignition on the engine check light does not come on, if I bridge the A-B wires on the diagnostic plug I get nothing, the… read more
Matt
Matt
Engineer
Bachelor's Degree
960 satisfied customers
Ford Transit: I have a Ford Transit, 06/06, SWB, VM, T330,
I have a Ford Transit, 06/06, SWB, VM, T330, 2.4L Turbo Diesel, 6 speed manual, RWD and it does not want to start. Our problem is that while the car is cranking there is no power being provided to the… read more
HondaPlatinum
HondaPlatinum
High School or GED
148 satisfied customers
1987 Nissan: timing belt..engine control unit..engine fault
Hi XXXXX I am working on a 1987 Nissan Skyline with a RB30E motor I would like information on the timing belt and all related marks Also as much imformation on the engine control unit and to be able a… read more
Glenn Bradley
Glenn Bradley
Australian Car Mechanic
Vocational, Technical or Trade Scho
699 satisfied customers
i have a ford falcon wagon auto for the last 7 years with no
i have a ford falcon wagon auto for the last 7 years with no problems..however in the past 6 months i can be driving along * in traffic * and the motor cuts out..the ignition lights on the dash are st… read more
Mechanic Martyn
Mechanic Martyn
Australia Car Mechanic
Vocational, Technical or Trade Scho
325 satisfied customers
hi i have a 2LTE engine (EFI injector pump). in a 1992 LN130
hi i have a 2LTE engine (EFI injector pump). in a 1992 LN130 Toyota surf. last week i removed the injector pump to get the seals replaced at a local engine specialist, as they were leaking messing up … read more
Curtis
Curtis
Australia Car Mechanic
Vocational, Technical or Trade Scho
1,614 satisfied customers
Holden astra bertone 11/02 Hydrolic roof snapped - we replaced
Holden astra bertone 11/02 Hydrolic roof snapped - we replaced it and now roof will automatically close to within 15cm then stops with 12 beeps. boot will only open with a key. I have read that I need… read more
Curtis
Curtis
Australia Car Mechanic
Vocational, Technical or Trade Scho
1,614 satisfied customers
holden Astra 11/02 ts bertone...sump..Could only find a z22yh block.
Holden Astra 11/02 TS Bertone. Had a Z22se engine that threw a leg out the sump. Could only find a Z22yh block. Changed over the head and all accessories to the new block. Installed the engine but now… read more
Mark
Mark
Mechanic
Vocational, Technical or Trade School
618 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