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Registered
Join Date: Jul 2004
Posts: 20
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Cannot read codes but TPS is ok!
I cannot read the diag codes on my e30 325is 87.
I tested the tps at it's connector, it works as it should with the pedal idle, slightly pressed and WOT (continuity 1st terminal & GND, none, continuity 3nd terminal and GND). I also tested it at the DME connector (per Bentley) and the TPS terminals also work as they should. Why can't I read the codes? I have tried several combinations and none work. The check light turns on about a second after the key is put into the ON position, regardless if the pedal is depressed or not. I have tried WOT x 5 -- IDLE x 5 -- WOT, IDLE x 5 -- IDLE, WOT x 5 within the 5 second period and none work. The check light will just stay ON and nothing happens. What do you guys think? |
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08-05-2004, 03:20 AM
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Join Date: Apr 2003
Location: oceanside
Posts: 193
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I think mine doesnt work either and It came about early 88 to fully be readable
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08-05-2004, 03:11 PM
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Join Date: Jul 2004
Posts: 20
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Oh and also, I unplugged the o2 sensor and ran the car for about half a minute today. The check engine light didn't even come on. I take it that's not good?
Bump. |
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08-07-2004, 05:04 PM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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Are your S.I. batteries in good shape?
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08-09-2004, 08:17 AM
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Join Date: Jul 2004
Posts: 20
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Not certain that they are, however the check light stays on if you put the ignition into ON and not start the car.
Can the SI batteries still be a source of trouble? |
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08-10-2004, 08:34 AM
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Join Date: Jul 2004
Posts: 12
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I have the same problem with my 86 325es. I can't seem to get my ecu to throw out any fault codes. I've followed the Fault Code article and everything pyro-rwd tried, but nothing. I have checked my SI batteries (Type CR14250SE, 3volts) and both read 3 volts on my DMM. Weird thing is...I can turn the CHECK ENGINE light off via the overhead (near rearview mirror) status CHECK button. Two presses of this button will put a pause on the blinking. Is there something that I have to reset in order to get the codes?
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08-10-2004, 10:54 PM
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Registered
Join Date: Apr 2003
Location: oceanside
Posts: 193
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you have now entered the zone Luke.
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08-11-2004, 03:41 PM
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