Slammed_Corsa
Member
Registered: 30th Oct 05
Location: Greenock, Inverclyde
User status: Offline
|
Right am i right in thinking that this sensor detects how much load is going through the engine?
What it is i can be driving along and when i come off the accelerator and the revs drop to 1,500rpm roughly the car sort of jolts forward or something like that, its hard to describe. But its not smooth anyway.
Could a faulty MAP sensor cause this. I have already replaced all the coolant sensors.
|
fragpot
Member
Registered: 29th Feb 04
Location: Linlithgow, West Lothian
User status: Offline
|
Probably not, the MAP sensor only monitors air pressure in the intake manifold and sends a variable voltage signal to the ECU, which uses the signal to adjust the fuel and timing calculations. Typical diagnosics of a faulty MAP sensor are poor engine performance, engine management light, acceleration hesitiation, over/under fueling, etc. 99% of the time MAP sensor faults are are due to a faulty/leeking vacuum hose anyway, so i doubt the MAP sensor is to blame.
Your problem sounds very strange, how does the car idle after some sporting? it could be an ICV problem?
I'm drunk btw 
[Edited on 17-12-2005 by fragpot]
|
Slammed_Corsa
Member
Registered: 30th Oct 05
Location: Greenock, Inverclyde
User status: Offline
|
The car idles fine around 850rpm.
|
ed
Member
Registered: 10th Sep 03
User status: Offline
|
Could be anything really, best bet is to do a Tech II test at a Vauxhall garage. Costs about £50, but cheaper than blindly replacing sensors...
|
Ben ev
Member
Registered: 23rd Oct 05
Location: kingslynn / torquay
User status: Offline
|
could be a fuelling problem with the regulator or blocked injectors or something
|
