STR no start - PO121 throttle body only code
#21
![Default](/forum/images/icons/icon1.gif)
Well this one was a bit of a basket case, so nothing is suddenly appearing except to the extent it has to run for fault codes to "suddenly" appear.. Cleared the codes, started it this morning, and it was misfiring at idle. Did the coil disconnect test to see if I had a bad coil and all are firing to some extent (i.e. engine ran worse when disconnected). Cleared the codes again, checked, random misfire occasionally sets a misfire for 6 and 8. Sometimes both banks, sometimes bank 2 cat damaging misfire. Lambda at .999, front 02's at 2 mv. Checked the knock sensor connectors and they are solid, those codes did not return. I think they were from the miss when driving.
I have another STR that runs fine that I can swap parts with to troubleshoot, trying to think of my next move. I swapped MAF and coils 6 and 8 with no change. Previously I swapped the CPS and throttle body.
I have another STR that runs fine that I can swap parts with to troubleshoot, trying to think of my next move. I swapped MAF and coils 6 and 8 with no change. Previously I swapped the CPS and throttle body.
#22
#23
![Default](/forum/images/icons/icon1.gif)
I'll probably swap the rest of the coils over, they are easy enough to do and don't see any harm in it.
Thread
Thread Starter
Forum
Replies
Last Post
maxthrottle
S-Type / S type R Supercharged V8 ( X200 )
5
03-14-2014 08:49 PM
gagashby
S-Type / S type R Supercharged V8 ( X200 )
17
04-06-2012 09:00 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)