Need misfire help
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TECH Junkie
iTrader: (71)
Joined: Mar 2002
Posts: 3,703
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From: East Brady, Pa
Need misfire help I have a low rpm misfire. Usually only does it below 2000 rpm. Most of the misfires are on the driver's side cyclinders with #1 and #5 being the most frequent. I just did headers a couple weeks ago and had the O2's out. I don't think it's a plug or wire problem. Here are the atap codes:
po134 H02S circuit activity bank 1 sensor
po135 HO2S Heater circuit bank 1 sensor
po140 HO2S Circuit activity bank 2 sensor
p1133 HO2S insuffient switching bank 1 sensor 1
I have no 02 simms for the back 02's but what does this say bout my front ones?
po134 H02S circuit activity bank 1 sensor
po135 HO2S Heater circuit bank 1 sensor
po140 HO2S Circuit activity bank 2 sensor
p1133 HO2S insuffient switching bank 1 sensor 1
I have no 02 simms for the back 02's but what does this say bout my front ones?
