Pulsing/jerking
13 August 2004, 06:20 AM
#1
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Pulsing/jerking
At approximately 2500rpm I can feel a pulsing sensation as if the car is speeding up then slowing down quickly. Any ideas? It's a P1.
Cheers,
G
Cheers,
G
13 August 2004, 08:12 AM
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Originally Posted by Hepy
At approximately 2500rpm I can feel a pulsing sensation as if the car is speeding up then slowing down quickly. Any ideas? It's a P1.
Cheers,
G
Cheers,
G
The former is likely to just be the ECU alternating each side of the stoich ratio as it reads from the lambda sensor. If you have a lamba link or AFR gauge you can see the mixture lean and richen in time with the pulsing.
13 August 2004, 09:52 AM
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Exactly what Avalanche has said - I get a light pulsing when the car is stone cold and yes it pulses in time with my AFR swinging back and forth. After a minute or so all is fine 