Stalling at start up

cre · 12-15-2009, 06:32 AM

Well, I've got a few idea's but check for error codes first: http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx

Then I'd check for intake leaks, test the ECU coolant temp sensor, test the AFM and test the fuel pressure.

Does this happen whenever you start the car or just when it's (the engine) cold? So, if it is 32? outside and you've been driving around... you stop, turn off the engine, run into the gas station for your favorite pr0n and come back out... does it start right back up or does it still falter?

Green7mgte · 12-15-2009, 06:37 AM

Quote:

Originally Posted by cre

Does this happen whenever you start the car or just when it's (the engine) cold? So, if it is 32? outside and you've been driving around... you stop, turn off the engine, run into the gas station for your favorite pr0n and come back out... does it start right back up or does it still falter?

If I stop for a quick minute it does not falter. But If let it sit for 5 minutes or more turned off it may or may not. I'm leaning more twords the cold engine falter. But there has been times when It has not cooled all the way down and starts/staggers. and yes there has been a time I remember quite clear that I ran to the gass station came back out and it staggered. it was cold outside and that was the only trip i took.

Green7mgte · 12-15-2009, 06:17 PM

I ran a diagnostic and returned just a continual blinking light.. all's clear for the diagnostics..

MA70-3.0GT · 12-15-2009, 06:31 PM

I'd be inclined to suggest that the cold start injector may be blocked/disconnected, the time switch may be dodgy or something similar.

The tsrm is the first place I turn now for any info I'm after, here's a link to the csi page (the time switch is on another page which you can find by hitting the "section index" button, then it's about 3" from the bottom of the index, page FI-112) http://www.cygnusx1.net/Supra/Librar...ection=FI&P=77

I'd check the injector itself first as they can simply be blocked with carbon deposits

Or I guess the idle air valve could be mucky too, although this would usually manifest itself whether hot or cold...

12-15-2009, 06:32 AM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Well, I've got a few idea's but check for error codes first: http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx Then I'd check for intake leaks, test the ECU coolant temp sensor, test the AFM and test the fuel pressure. Does this happen whenever you start the car or just when it's (the engine) cold? So, if it is 32? outside and you've been driving around... you stop, turn off the engine, run into the gas station for your favorite pr0n and come back out... does it start right back up or does it still falter? __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

12-15-2009, 06:17 PM	#3
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	I ran a diagnostic and returned just a continual blinking light.. all's clear for the diagnostics.. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

12-15-2009, 06:31 PM	#4
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	I'd be inclined to suggest that the cold start injector may be blocked/disconnected, the time switch may be dodgy or something similar. The tsrm is the first place I turn now for any info I'm after, here's a link to the csi page (the time switch is on another page which you can find by hitting the "section index" button, then it's about 3" from the bottom of the index, page FI-112) http://www.cygnusx1.net/Supra/Librar...ection=FI&P=77 I'd check the injector itself first as they can simply be blocked with carbon deposits Or I guess the idle air valve could be mucky too, although this would usually manifest itself whether hot or cold... __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!! Last edited by MA70-3.0GT; 12-15-2009 at 06:38 PM.

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