SES light - need help
01-19-2007, 08:43 PM
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SES light - need help 02 Z28 LS1 6spd, 66k, 100% stock. I'm a newbie when it comes to computer controlled engines.
Car's running fine, I stop at Home Depot for about 30 min. Starts right up and as I shift from 1 to 2 the car starts to shake and run rough. I take it out of gear and it smooths out. Drive for a few minutes, feels a bit sluggish, and the SES comes on. Steady at first, then flashing, then steady. Today I started it up again and let it run a few minutes. It smelt like running rich but that could just be cause its cold out and engine wasn't warmed up.. I didn't drive it. Any ideas. I'll bring it over AutoZone and get the codes tomorrow.
Car's running fine, I stop at Home Depot for about 30 min. Starts right up and as I shift from 1 to 2 the car starts to shake and run rough. I take it out of gear and it smooths out. Drive for a few minutes, feels a bit sluggish, and the SES comes on. Steady at first, then flashing, then steady. Today I started it up again and let it run a few minutes. It smelt like running rich but that could just be cause its cold out and engine wasn't warmed up.. I didn't drive it. Any ideas. I'll bring it over AutoZone and get the codes tomorrow.
01-19-2007, 09:15 PM
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If the SES light was flashing, you'll have a P0300 DTC (random multiple misfire). You might also have a P0301 thru P0308 (the last number in those DTCs [1-8] signifies the specific cylinder that is misfiring).
Get it scanned to see what exact DTCs you have stored, and go from there. Could be a bad plug wire, bad plug, bad coil, etc.
Get it scanned to see what exact DTCs you have stored, and go from there. Could be a bad plug wire, bad plug, bad coil, etc.
01-20-2007, 09:56 AM
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Things are looking worse this morning. It's smoking out the tailpipes, and it looks more blue than black, although it does smell more like fuel. I don't want to drive it. I gotta find someone with a scanner. I hope I'm not looking at a rebuild here.
01-20-2007, 11:32 AM
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Originally Posted by Steve74-02
Things are looking worse this morning. It's smoking out the tailpipes, and it looks more blue than black, although it does smell more like fuel. I don't want to drive it. I gotta find someone with a scanner. I hope I'm not looking at a rebuild here.
Get it scanned ASAP. Let us know what the DTC is once you do that.
01-20-2007, 05:47 PM
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codes I pulled the codes today:
P0200 Injector Circuit Malfunction
P0300 Random/Multiple Cylinder Misfire Detected
P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0161 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
The scanner said there were 6, but then showed P0200 and P0300 a 2nd time after I scrolled down.
P0200 Injector Circuit Malfunction
P0300 Random/Multiple Cylinder Misfire Detected
P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0161 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
The scanner said there were 6, but then showed P0200 and P0300 a 2nd time after I scrolled down.
01-20-2007, 05:53 PM
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Something else I notice just as I start the car, there's a 'click' and then it fires. Maybe it's normal but I don't remember this. Almost sounds like the battery is dead for a second.
01-22-2007, 10:23 AM
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Can someone walk me through the next steps in the diagnostic process,? like where are these sensors or what would trigger these codes. Something common to sensor 1 and 2? I just want to make sure its not something simple (like a bad or disconnected wire) before I bring it in for service. Like I said, I'm a newbie with all this stuff.
Last edited by Steve74-02; 01-22-2007 at 06:06 PM.