Search found 5 matches
- Fri Aug 30, 2013 6:04 pm
- Forum: Diagnostic Help
- Topic: Erratic spark timing problem
- Replies: 11
- Views: 4861
Re: Erratic spark timing problem
Doing a compression test is worth it, just to see if anything is obviously mechanical causing a misfire since you are tossing parts at it, a CPS wouldn't be a bad idea. They are a bitch to replace on 2.2s but they are cheap and it does control some aspect of the spark. The compression test is okay ...
- Wed Aug 28, 2013 7:13 pm
- Forum: Diagnostic Help
- Topic: Erratic spark timing problem
- Replies: 11
- Views: 4861
Re: Erratic spark timing problem
That's okay. It's running for the moment, but i haven't put too much time on the road to be sure it's okay. Running with intermittent headlights and no exhaust but a downpipe is a bit risky. Having the helm book makes me feel better for future repair prospects though. I'm not sure if I want to inves...
- Mon Aug 26, 2013 4:37 am
- Forum: Diagnostic Help
- Topic: Erratic spark timing problem
- Replies: 11
- Views: 4861
Re: Erratic spark timing problem
As if it matters, the issues were: 1: blown head gasket with prior long-term coolant burning (had precipitated other problems) 2: plugged cat and increasing backpressure problems causing temp-dependent vacuum and intake backfiring problems 3: slow and intermittently spurious oxygen sensor (found as ...
- Fri Aug 23, 2013 9:30 pm
- Forum: Diagnostic Help
- Topic: Erratic spark timing problem
- Replies: 11
- Views: 4861
Re: Erratic spark timing problem
Today the unburned fuel lit up in the catalytic converter while running it. The orange-hot cat was pretty obvious and i figured it may be plugged so i torched it off. It's maybe 30% blocked up and the vacuum seems to stay more around 20" now and there isn't a lot of unburned fuel in the exhaust...
- Fri Aug 23, 2013 12:55 am
- Forum: Diagnostic Help
- Topic: Erratic spark timing problem
- Replies: 11
- Views: 4861
Erratic spark timing problem
Hi, I've been reading the posts here over the past week as i've been working on the latest repairs, but this will be my first post. Forgive me if my reply interval is long. I'm often away from the computer. I have a 91 Beretta with the TBI 2.2L (VIN G). After having a problem with intermittent stall...