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2004 C4S Tip 96k km random stall solved

Yukio Okubo

PCGB Member
Member
I had this scary failure for two months and would like to share the information with members suffering from random stalls at signal stops.
1. Random stalls at signal stop. 1-2 times a day , without CEL !
2.Longer cranking (4-5secons ) followed by faster idling as 900-1000rpm....(camshaft and crankshaft sensors might help each other.)
3.Rev’ed and idled fine other than the stalls and faster idling
4.Cleaned the throttle valve and replaced MAF , no success.
5. Went to a shop , then he found ‘ Engine RPM ‘ left in the TEXA scanner
6.Finally almost dead at the shop and replaced the crankshaft speed sensor.
7.Solved , and I learned that the other sensors might be dead soon or later.
8.Camshaft , Knock , Throttle sensors ordered to minimize the budget.
If helps any.
 
Thanks for your info Yukio.
The crankshaft speed sensor is not an uncommon issue and usually fails when warm.
enjoy & kind regards
Andy
 

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