dsmAB
10+ Year Contributor
- 94
- 19
- Mar 17, 2011
-
Edmonton,
AB_Canada
The car when started from cold would idle rough and give me the CEL code P0303 (cyl. 3 misfire). It still idles but obviously very rough..
However, when i let it idle rough for about 30 seconds (AFR cycles around 19:1) and shut the car off and then start again, it only misfires for the first little bit and then starts running normally.
I recently had to replace my CAS, and also tested the coilpack, power transistor while i was trying to diagnose my previous problem. Also I put in new plugs (gapped correctly) and wires when i changed the CAS..
I did get new injectors from classifieds and that is my guess on whats causing this misfire in cylinder 3. But my question is that can a injector be affected by temperature? I also checked to see if i wasn't getting spark to cylinder 3, but it seems to be perfectly fine.
Any input would be greatly appreciated guys!
However, when i let it idle rough for about 30 seconds (AFR cycles around 19:1) and shut the car off and then start again, it only misfires for the first little bit and then starts running normally.
I recently had to replace my CAS, and also tested the coilpack, power transistor while i was trying to diagnose my previous problem. Also I put in new plugs (gapped correctly) and wires when i changed the CAS..
I did get new injectors from classifieds and that is my guess on whats causing this misfire in cylinder 3. But my question is that can a injector be affected by temperature? I also checked to see if i wasn't getting spark to cylinder 3, but it seems to be perfectly fine.
Any input would be greatly appreciated guys!
