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Old 08-01-2017, 09:45 PM   #1
cerberii
 
Drives: 2005 Yaris
Join Date: Aug 2017
Location: Egypt
Posts: 9
2006 Yaris Cold Start problems

Hi, I need to rev when i cold start or start driving right away. If I dont then the engine putts along (missing) and eventually dies. After a few minutes of 1500 rpm idle by gas pedal pressure it idles and runs normally. Or after about 5 or 10 starts and dying it will then idle normally.

Is this the throttle body (ICV) that needs cleaning? MAF sensor? PVC? Bad Gas? Fuel system? Motor is finished?

Manual says when theres a problem with the air/fuel mixture it will do this cutout, and best way is to reset computer (off/on).

Any ideas?

edit:

I have tried cleaning the MAF sensor, and then cleaning PVC, and air filter, then did a reset on the computer. This time it started and seemed to be fixed. After a few minutes though it started putting at 500 rpm and then died.

Seems now it always idles at 500 rpm instead of 1000 rpm though during the cold start or randomly even when its warm?

update 1:
Cleaned air intake system everything is renewed, cleaned the throttle body and intake manifold, new plugs, still dies on cold start if i dont hold the rpm at 2000 until warm.

Opened the gas tank, took teh gas filter/motor out and cleaned it started up again, we'll see if i fixd it tommorow morning for the traditional cold start misfires and stalls

Last edited by cerberii; 08-12-2017 at 01:51 PM.
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