'97 Deville, runs rough with A/C on
Super Moderator
Joined: Jun 2006
Posts: 507
RE: '97 Deville, runs rough with A/C on
ORIGINAL: FLCaddytech
if you have been driving for a year with the SES light on, then you have no idea how many other codes may have set since the last time you had it scanned.
Step 1.
Scan for codes
if you have been driving for a year with the SES light on, then you have no idea how many other codes may have set since the last time you had it scanned.
Step 1.
Scan for codes
I do not have a scanner to pull codes, although I do know it needs an O2 sensor because the SES light is on and the scanner I borrowed a year ago said that. Could the O2 sensor be causing this problem?
Step 2.
Repair the obvious problem first then move on to the next issue.
Repair the obvious problem first then move on to the next issue.
Thread Starter
Joined: Feb 2007
Posts: 13
RE: '97 Deville, runs rough with A/C on
OK, here are the codes. It sounds like I probably need two O2 sensors to start...
P0139 - O2 sensor ckt slow response Bank 1, Sensor 2 (also Bank 1, sensor 1 but I forgot to write down the code number)
P0300 - Random / multiple cylinder misfire detected (may have occured because I hooked up the plug wires wrong when I put on a new set a few months ago)
P0135 - O2 sensor heater circuit malfunction Bank 1, Sensor 1
P0141 - O2 sensor heater circuit malfunction Bank 1, Sensor 2
P1139 - Manufacturer controlled fuel and air metering
Go for it tech meisters.
Bank one is the bank closest to the frt of the car, correct (?), or whichever starts with cykinder one, I haven't looked at it in a while.
Thanks guys.
Dave
P0139 - O2 sensor ckt slow response Bank 1, Sensor 2 (also Bank 1, sensor 1 but I forgot to write down the code number)
P0300 - Random / multiple cylinder misfire detected (may have occured because I hooked up the plug wires wrong when I put on a new set a few months ago)
P0135 - O2 sensor heater circuit malfunction Bank 1, Sensor 1
P0141 - O2 sensor heater circuit malfunction Bank 1, Sensor 2
P1139 - Manufacturer controlled fuel and air metering
Go for it tech meisters.
Bank one is the bank closest to the frt of the car, correct (?), or whichever starts with cykinder one, I haven't looked at it in a while.
Thanks guys.
Dave
Super Moderator
Joined: Jun 2006
Posts: 507
RE: '97 Deville, runs rough with A/C on
You have five codes saying the o2 sensors are a problem.
Unless you had some very weird wiring problem I'd go with 2 new sensors.
Bank 1 is the back head. Passenger rear 1 3 5 7
Unless you had some very weird wiring problem I'd go with 2 new sensors.
Bank 1 is the back head. Passenger rear 1 3 5 7
Thread Starter
Joined: Feb 2007
Posts: 13
RE: '97 Deville, runs rough with A/C on
Thanks FLCaddytech. I agree, I'll put in two new sensors and go from there. No weird wiring probs that I know of. This is a very clean unmolested car. I'll let you know what happens.
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sbrant01
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