MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
|
ok ive changed the Coolant Temp Sensor and car is still jerky upon quick easing of accelerator in any gear!??
thought it would be the CTS as its ONLY jerky when engine is warm/hot at about 90degrees and above, but is fine when engine is cold!??
what else could it be?....
which one of the following could cause it and which should i try next?
1) Air mass Sensor
2) o2/lambda sensor
3) leak in inlet manifold
|
ed
Member
Registered: 10th Sep 03
User status: Offline
|
All of them. Though looking for air leeks is free - check the vacuum pipes too.
|
MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
|
im pretty sure the inlet manifold gasket is leaking a little as when i took it of a while ago it was making a squeeking noise, but i dont know if thats causing the problem??
how can i check if the air mass is working ok??
|
myke
Member
Registered: 7th Feb 01
Location: High Wycombe, Buckinghamshire
User status: Offline
|
replace the gasket then. would be a good place to start IMO
|
Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
|
is it jerky from start offf or is it above a certain rev range E.G 3000RPM?
|
Greasemonkey
Member
Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
|
Propably that fook off viper air filter ya got, looks like ya not running a direct cold air feed to it????
|
MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
|
it sort of Jerks back and forth a little when i suddenly/quickly release the accelerator pedal when engine is warm/hot?? at any rev during normal driving really, but it is fine when cold!... havnt tried it at higher revs like 3/4k+
i tried the original air box and air feed and it was still jerking..
so its not the viper, and it has got a air feed but its just not connected to it
[Edited on 01-12-2004 by MoNkEy MaGiC]
|
Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
|
i had a simular problem... turned out the crank angle sensor was loose.
|
MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
|
crank sensor?
were is this exactly, what it look like?
isit the one right at the bottom under a pulley?
|
Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
|
quote:
Originally posted by MoNkEy MaGiC
crank sensor?
were is this exactly, what it look like?
isit the one right at the bottom under a pulley?
yep 
and do something with your signiture man 
|
MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
|
checked the sensor.. it seems fine and is plugged in quiet solid and does not move, gave it a quick clean... but car still feels the same???
|
ffls
Member
Registered: 29th May 02
User status: Offline
|
It can be a sensor malfunction. Try to measure the amps of the sensor, it must be between a certain values, if you understand what I mean...my english is getting worse
|
