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| New member with questions about check engine codes | |
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| Tweet Topic Started: Nov 6 2012, 11:41 PM (372 Views) | |
| Jagerace | Nov 6 2012, 11:41 PM Post #1 |
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Fresh Fish
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Hi guys, new member here. I just bought a 96 metro with a 1.0 engine. I ran the codes because the check engine light was on. Heres the ones that came back. p0134 heated oxygen sensor (bank 1 sensor 1) insufficient activity p0141 heated oxygen sensor (bank 1 sensor 2) heater circut malfuntion p0400 erg system performace How many oxygen sensors are on my engine? I was thinking 2 and they are both bad but not sure. Are they something that can be fixed or should they just be replaced? Also where to start with the erg problem. Seems that there are quite a few things that could be the cause of the code. Any help troubleshooting would be great. I don't know a thing about the car as of yet but can usually figure something out with a little help getting me going in the right direction. Many thanks. Josh |
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| Woodie | Nov 7 2012, 07:23 AM Post #2 |
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EGR is probably a clogged up EGR system. It gets packed solid with carbon and there is no exhaust flowing through it. Search around, there's a thread on how to clean it out somewhere on here. You have two O2 sensors, one is mounted on the exhaust manifold right next to the oil filter. When you stand in front of the car looking at the engine the big rusty bit closest to you will have a metal thing sticking out of it with four wires that go over to the passenger side of the engine. That's your front O2 sensor. The rear one is screwed into the exhaust pipe about halfway back the length of the car. Very near where the shifter pokes out the bottom of the car. You should check the sensor grounds before doing much else, our grounds are well known for causing all sorts of sensor errors. Here's the main one, disconnect it, clean everything up with a wire brush, and put it back on:
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3:18 AM Jul 11