Lexus

Lexus Troubleshooting Questions? Ask a Lexus Expert

Ask an Expert,
Get an Answer ASAP!

Lexus

Gs 300 lexus: frank here at a shop got 1999 Lexus gs300

Customer Question
Hi frank here at a...
Hi frank here at a shop got 1999 Lexus gs300 dtc 1300 and starts 3 seconds dies new wires dura last plugs swapped igniter w known good one and changed pigtails on all 3 coils did timing belt lines up car came in running but now it won't stay running
Submitted: 2 years ago.Category: Lexus
Show More
Show Less
Ask Your Own Lexus Question
Answered in 12 hours by:
5/13/2015
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 2 years ago
Skyvisions
Skyvisions, ASE Certified Technician
Category: Lexus
Satisfied Customers: 14,541
Experience: Lexus Expert
Verified
just to clarify you're stating that it ran perfectly fine until the timing belt was changed? Do you have an oscilloscope or a borescope?
Ask Your Own Lexus Question
Customer reply replied 2 years ago
no i do not, and yes it did run perfectly fine until then, but I also took off the valve cover, and I had the same problem in a different car that was the same year and model a month ago the wires for the coils were fried together i got that car to run with the dtc 1300
will the dtc 1300 come on if the belt is improperly installed, and it seems that I am losing noid on the injectors it will run with starting fluid i just don't understand the correlation between dtc 1300 and the timing belt, also we took off the cam seals. so we had to take the sprocket off the intake cam when we put it on it only moved 30 degrees like the book said it should
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 2 years ago
Clarification the P1300 code is and ignition confirmation signal back to the computer if it does not see this it shuts injector pulse off. That is normal. Probably what you're going to find is the reluctor gear with the drive gear on the crankshaft that has the little serrations or teeth on it, one of them got damaged. Pull the belt back off and check this drive gear and make sure none of the teeth are nicked even slightly if it is it throws this code and will shut the system down. The only other possible option is the wires to the crankshaft sensor but typically you will have a code for the crankshaft position sensor if that's the case. Let me know you find with the crankshaft drive gear seriation teeth for the crank signal.
Ask Your Own Lexus Question
Customer reply replied 2 years ago
ok got the timing cover off the drive gear looks really good I have pictures I don't know how to send them on this site do you? i've had that problem before breaking teeth on the gear so we were really careful because I didn't want to buy another one but if I have to I will, we are a little confused on the intake sprocket gear installation could you explain to me how to install that with the belt where do you set it at etc.
Customer reply replied 2 years ago
when you put the sprocket on the book says to rotate it 30 degrees and it does rotate, do you have to take the oil line off the vvt i solenoid and why? we did not do that, when you put the sprocket back on and tighten it up where do you tighten it up at 30 or 0. the book did not specify on how to align that, the car came in lined up and we did not take the 5 bolts off the sprocket so we did not damage it.
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 2 years ago
I'm just trying to clarify are you saying that at no time you had the camshaft timing VVTI gear off of the end of the camshaft?
Ask Your Own Lexus Question
Customer reply replied 2 years ago
I did have that gear off I changed the cam seal i did not remove the 5 bolts like the book said
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 2 years ago
Were you able to upload a picture of the drive gear? There should be a tab that allows you to upload pictures. Or you can use a third-party server like photo bucket and then post a link here.
Ask Your Own Lexus Question
Customer reply replied 2 years ago
my phone is dead i am going to try to do it tonight could you explain how to line up the intake camshaft and the vvt i gear
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 2 years ago
I will gather some information and send it.
Ask Your Own Lexus Question
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 2 years ago
After you install the VVTI gear onto the end of the camshaft so that the knock pin aligned properly with the hole in the gear did the outer circumference of the VVTI gear move at all or was it fixed?
Ask Your Own Lexus Question
Customer reply replied 2 years ago
It moved 30 degrees like it is supposed to.
Lexus Mechanic: Skyvisions, ASE Certified Technician replied 2 years ago
The book is not very specific about were to set that VVTI gear. It says that you should rotated to make sure it moves the 30°. It then just as to install and line the marks up on the back cover with the gear. Which would mean you would have to rotated back to the right or clockwise. This being said if that's what you did and installed it you would not have a 1300 code it would set a variable valve timing correlation code. Because the camshaft at that point would be out of time. If you are not getting that code this is not the problem. The only other time I've seen a P1300 code set is when there is a malfunction with one of the ignition coils shorting the system out. If you are 100% certain that the drive gear is in good condition with no cracks or nicks then the wiring to the crank sensor and cam sensor needs to be inspected to make sure there's no shorts. Without an oscilloscope to check the pattern of these two sensors it is difficult to say for certain whether that could be triggering the problem. It's been too long since I have worked on one of these older ones and I can't recall where I set the timing after the 30° check but I believe it was clockwise so that the mark on the gear lines up with the Mark on the backing plate. Then the belt is installed.
Ask Your Own Lexus Question
Ask Skyvisions Your Own Question
Skyvisions
Skyvisions
Skyvisions, ASE Certified Technician
Category: Lexus
Satisfied Customers: 14,541
14,541 Satisfied Customers
Experience: Lexus Expert

Skyvisions 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:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

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

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

lexpert

lexpert

Lexus Master tech

2,100 satisfied customers

Master Certified with lexus, 8 years experience with Lexus

Skyvisions

Skyvisions

ASE Certified Technician

14,541 satisfied customers

Lexus Expert

Ron Z.

Ron Z.

- Lexus Tech -

430 satisfied customers

18+yrs experience. State Inspector and Lexus Diagnostics

Chris (aka - Moose)

Chris (aka - Moose)

Technician

310 satisfied customers

16 years of experience

AMD

AMD

Master Technician

270 satisfied customers

L1 Advanced Level Diagnostics Specialist

George H.

George H.

ASE Certified Technician

220 satisfied customers

15+ years ASE Master w/L1 Drivability certification

Tim Mohr

Tim Mohr

ASE MASTER

126 satisfied customers

30 YEARS EXPERIENCE, FORIEGN AND DOMESTIC, GAS AND DIESEL

< Previous | Next >

Related Lexus Questions
My lexus is lx470, is 2006, It is not a car of a customer I
It is not a car of a customer I have problems with the suspension system, I start high but when it starts to roll low … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
2015 lexus is350 can get it to crank.it was flooded.key was
2015 lexus is350 can get it to crank.it was flooded.key was proramed and beeps but locks do not work. can any body giveme any idea please? thanks. … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,008 satisfied customers
1992 lexus es300, I removed instrument cluster for repair,
1992 lexus es300, I removed instrument cluster for repair, without first disconnecting battery terminal wires. ( which I now know I should have done) With instrument cluster reinstalled air bag lite i… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
I have a 1998 Lexus LS400. Intermittently the VSC light off
I have a 1998 Lexus LS400. Intermittently the VSC light off light comes on. When it does I have a complete loss of power to the vehicle. I have to mash the Excelerator all the way to the floor just to… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
Same, Cd is bot workinc. Lexus 2008 80000 miles LS 460
Lexus 2008 80000 miles LS 460 Mark Levinson, does it have solution? … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
I have a 2006 Lexus IS 250. All power, but push to start and
Hi i have a 2006 Lexus IS 250. All power, but push to start and the car won't start. Please help!… read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,008 satisfied customers
I have lexus rx330 2004. my key stuck in ignition. I can
I have lexus rx330 2004 . my key stuck in ignition … read more
Mechanic01
Mechanic01
1,645 satisfied customers
2008 Lexus 460LS quit running while driving. Will start
2008 Lexus 460LS quit running while driving. Will start again but will quit after a minute or two. … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,375 satisfied customers
2009 gs 350 with no audio. Fuses are good. It if I could
2009 gs 350 with no audio. Fuses are good. It if I could find an audio wiring diagram I'm sure I can diagnose the problem. Can you tell me where I can a wiring diagram. … read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
Bar fuse is by the battery on my 2006 lexus is 350...I think
bar fuse is blown by the battery on my 2006 lexus is 350...I think I need a special tool... … read more
Chris (aka - Moose)
Chris (aka - Moose)
Technician
Vocational, Technical or Trade School
310 satisfied customers
I have a lexus 450h. 2010 lexus rx 450h. Nothing yet,
Nothing yet, rarely, but, twice now when I cut the car on it won't go in drive … read more
Chris (aka - Moose)
Chris (aka - Moose)
Technician
Vocational, Technical or Trade School
310 satisfied customers
My hybrid runs but only gets up to 70 mph loses power and
my hybrid runs but only gets up to 70 mph loses power and the check engine light and check hybrid system warning is on … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Catalytic caught fire 2008 RX 350. Its at dealer. Battery
Battery light came on 4 miles from home midnight in 12 degree weather. Started to lose electronics, car started bucking, cat was on fire in driveway, put fire out with extinguisher … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Timing is off on my 99 rx 300. Changed timing belt but
timing is off on my 99 rx 300. Changed timing belt but problem is the same. also changed both vvt solenoids. When I go uphill, the ignition sound leaks out through the exhaust (snare drum sound) … read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
I have a 06 Lexus gs300 and my check engine light bac light
I have a 06 Lexus gs300 and my check engine light bac light and trace light are all on. It has done this before and the reading was misfire 2.I repacked that core pack and now it's back on with a gas/… read more
ricardo hohl
ricardo hohl
automotive instructor
Associate Degree
1,818 satisfied customers
Check engine light is flashing. I'm thinking it's a coil bit
Check engine light is flashing. I'm thinking it's a coil bit wondering if I drive it if it's gonna leave me on side of road. My mechanic is out until Tuesday & I have business this weekend. Thank yoj … read more
Mechanic01
Mechanic01
1,645 satisfied customers
I have a 2000 GS300 and the past couple of days I would go
I have a 2000 GS300 and the past couple of days I would go outside and all my windows are down in the morning and my sunroof open what causes that … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
My nav systems no longer reads the disk, thus my auto matic
my nav systems no longer reads the disk, thus my auto matic front beam light no longer work … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 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