2001 b4 liberty engine missfire

B4/DAVE · Post by **B4/DAVE** » Sun Mar 10, 2013 5:21 pm

Hi People please help.
I have an 2001 b4 liberty stock car no mods, It keeps throwing the cam sensor code when i turn the a/c on and runs rough. Also on start up idles rough for a couple of seconds then runs fine , we have replace cam and crank sensors and its still doing it.
Any ideas
Thanks Dave

Post by **TOONGA** » Sun Mar 10, 2013 8:36 pm

Don't use the aircon?

But seriously are there any stored codes? or was there any stored codes?

You should check for leaks around intake at the throttle body. As well check your MAF/AFM not sure which one the B4 has. As well check the IACV.

Has the O2 sensor ever been changed?

TOONGA

Post by **Alex** » Mon Mar 11, 2013 9:01 am

Knock sensor.

Sent from my Motorola RAZR HD

Gannon · Post by **Gannon** » Mon Mar 11, 2013 9:54 am

Check the ground points on the engine. The electrical load of the air con clutch could be playing funnies with the ground wire of the cam sensing

Sent from my new touchy phone thingy

B4/DAVE · Post by **B4/DAVE** » Tue Mar 12, 2013 12:27 pm

Thanks , Im looking at it today i will let you know how i go

RSR 555 · Post by **RSR 555** » Thu Mar 14, 2013 4:30 pm

Gannon wrote:Check the ground points on the engine. The electrical load of the air con clutch could be playing funnies with the ground wire of the cam sensing

+1

And also check the main engine harness doesn't have any water/moisture in them