car running rough and O2 voltage low
#1
Launching!
Thread Starter
Join Date: Jul 2004
Location: Florence, MS
Posts: 249
Likes: 0
Received 0 Likes
on
0 Posts
car running rough and O2 voltage low
Finally got the car running after months of trial and error again. Replaced opti, coil, coil pigtails, and finally the spark plugs(autolite 103's gapped@.035). Was running ok not the best but it was running! My O2 voltage was screwey on the scanmaster hanging out around 054 or so. Cycled thru to individual readings and it was more so the right bank reading bad. So anyway, I went to the carwash to wash the car and acorns and rat turds from under the hood. Car drove home fine. When I left for work it was running rough this morning and no ses light was on but the scanmaster gave code 18. I got the noid lights out and all harnesses checked out ok but it still runs rough as hell. I'm going to swap sides on the oxygen sensors to see if the low voltage follows. Any idea what could be wrong? They are delco oxygen sensors btw.
#4
I still think you have a misfire. One trick you could try is misting your header primaries with water to see if they are all hot... a cold primary would be your problem cylinder.
#5
Launching!
Thread Starter
Join Date: Jul 2004
Location: Florence, MS
Posts: 249
Likes: 0
Received 0 Likes
on
0 Posts
One of my injectors is dead. Checked all injector connectors all read 12.4 volts. All injectors read 13.4-13.6 ohms accept one and it didn't register nothing