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| Forum name | Performance/Engine |
| Topic subject | Engine Problems |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=71723 |
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71723, Engine Problems Posted by EvMan2345, Mar-29-04 03:44 PM So im driving along, and my car starts backfiring and is being sluggish. More gas i give it, the quicker the RPMS drop and the car dies. I cant go past 20-25 mph, and cant make it up hills (my driveway is slightly inclined- barely made it). I have code 21. Also, the car is smoking from the engine bay. code 21 is O2 sensor related. Is this a symptom of a bad 02? also, what would cause the smoking? my air/fuel gauge was pinned at lean, sometimes not even showing any led's. I also failed emissions today (3 hours before this) because my ECU didnt send a signal to the OBD2 tester (no sniffer test- all electronic). Dont know if that has anything to do with it. | |
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71751, RE: Engine Problems Posted by JWoodley, Mar-29-04 05:11 PM Have you tried to reset your ECU? A crapped out 02 could give you faulty readings. Let us know what steps you've taken so we can better help you. Goodluck. | |
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71758, RE: Engine Problems Posted by turbo8u, Mar-29-04 07:19 PM
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71761, RE: Engine Problems Posted by EvMan2345, Mar-30-04 02:27 AM i figured the o2 sensor would need replacing- but what would cause the smoking?? | |
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71773, RE: Engine Problems Posted by Corbin, Mar-30-04 05:25 AM Cut the A/F gauge wiring at the sensor (or ECU). See if that fixes anything. If the A/F gauge wire coming from the O2 sensor output grounds out against the chassis, you will see these exact problems. This exact scenario happened to me when I used old wire to install my A/F gauge. The wire wore through and grounded out against the body. The car nearly died, had 0 power, CEL 21, and A/F full lean. | |
