Idelinng Extremelly rough

[david marshall]

Hey guys have a problem with my vs ecotec.. was driving down road one day and pulled up at lights,when i went to pull off from lights car was running shocking and i cant get it above 40/50 kmh i have replaced all my leads/plugs and have tried swapping over Crank angle sensor, AFM i was goin to try the 02 sensors next but most people say that if it o2 sensor it gets better as it warms up, but mine is just stuffed all the time... im totally stuck for ideas...any help would be apprecitated

[mitchvsute]

try the module under the coil packs. mine needed a new one of those. and check the wires coming out of it and aroud your belts ect

[david marshall]

im getting spark to all leads... could the module still be the problem or would that make me not get spark???

[david marshall]

just put in a whole new coil pack/module and still no luck

[BrAdAsS]

I just replaced my Coolant Temperature Sensor $80 from repco... Im not saying that's what is wrong but it made my vx idle better and has improved my fuel economy and pepped the car up off idle. It also removed a problem I had where the revs would not sit at 1000-1300rpm it would jump and clear from 1000 to 1300rpm as a normal rev progression. It also seems to not suffer from hot weather as much either.

I got told by the injector service guy that the coolant temp sensor influences injector timing which is why Im noticing a difference.

Have you checked for fault codes? If you search on here you will find which pins in the VS ALDL to short for finding fault codes manually.

[david marshall]

mine is really bad like not drivable

[WogBoyz]

id replace both ur o2's anyway man, also check battery, maybe give throttle the body a good clean out too

Check ur codes too man and see what it comes up with

Just Commodores - For All Your Holden Commodore Needs

and this thread may help even tho its for vr/vs

Checking error codes VR/VS (Revised)

good luck mate

[BrAdAsS]

Test for fault codes. This will hopefully give you something to go from instead of replacing things blind and hoping for a fix

[BT1-355]

Sounds like the fuel pump

[david marshall]

i have a haltech interceptor but am having trouble finding a laptop old enough to have a serial port so i can connect it up

[hako]

When you say it's running shocking do you mean it's missing or just is 'weak'?
The reason I say this is because it may be a transmission problem - you may be in Limp Home Mode which will make it seem like it's driven by an elastic band.

[david marshall]

yer its missing big time seems like its runnign really rich

[seraphic06]

There is a small rubber hose on the underside of the throttlebody. Take your engine cover off and check to make sure that it has not come off.

[david marshall]

hey mate i got a YT SC so no need to take off engiine cover... but already checked all vacuum lines ect.. and all are intact and connected

[delcowizzid]

check the fuel pressure reg vacuam hose and make sure its not leaking fuel direct into the inlet failing that ide be starting to look at the interceptor