On Board Diagnostics

[rharland_bmw]

1990 525i 146,000+ miles.

I have a sporatic problem whereby the engine drops power and the "Check Engine Light" goes on. I have replaced the O2 sensor and catalytic converter. I would like to get the diagnostic readout from the dash but it doesn't seem to work. I stomp on the ges pedal after turning the sw to on but nothing happens. Any ideas on what I am doing wrong.

Concerning the original problem, once I pull the car off the road and shut it down, I wait for 10 minutes and then the car will go for 2-4 miles before the same problem happens.

thx

[d3ity]

The 5 stomp test doesnt work on my 95 525 or my 93 525i, You're gonna need a codereader. That said, its a great investment.

[3serbmdubya]

codereaders are usually for obdII cars 96' and up. i dont think there were codereaders for older model bmws. the stomp gas pedal works for my 92 325i you have to put the key in the run position and within like 3 seconds stomp the gas pedal to the floor, and let go 5 times

a nice DIY to help you out

http://www.pelicanparts.com/bmw/techarticl...ode_Reading.htm

[rharland_bmw]

Originally posted by 3serbmdubya@Nov 30 2004, 08:42 PM
codereaders are usually for obdII cars 96' and up. i dont think there were codereaders for older model bmws. the stomp gas pedal works for my 92 325i you have to put the key in the run position and within like 3 seconds stomp the gas pedal to the floor, and let go 5 times

a nice DIY to help you out

http://www.pelicanparts.com/bmw/techarticl...ode_Reading.htm

[snapback]240807[/snapback]

Thanks for the reply!!! Fyi prior to 95 there is a special code reader for the older BMW's. I am going to buy one however it seems that the diagnotics are somewhat limited. When I first had this problem I took it to a dealer (I needed it fixed quick) and they read a code 10 meaning injector 1,3,or 5, they replaced a vacum hose and said it was fixed, however it wasn't.

[rharland_bmw]

Originally posted by rharland_bmw+Nov 30 2004, 08:57 PM--><div class='quotetop'>QUOTE(rharland_bmw @ Nov 30 2004, 08:57 PM)</div><div class='quotemain'><!--QuoteBegin-3serbmdubya@Nov 30 2004, 08:42 PM
codereaders are usually for obdII cars 96' and up. i dont think there were codereaders for older model bmws.* the stomp gas pedal works for my 92 325i you have to put the key in the run position and within like 3 seconds stomp the gas pedal to the floor, and let go 5 times

a nice DIY to help you out

http://www.pelicanparts.com/bmw/techarticl...ode_Reading.htm

[snapback]240807[/snapback]

Thanks for the reply!!! Fyi prior to 95 there is a special code reader for the older BMW's. I am going to buy one however it seems that the diagnotics are somewhat limited. When I first had this problem I took it to a dealer (I needed it fixed quick) and they read a code 10 meaning injector 1,3,or 5, they replaced a vacum hose and said it was fixed, however it wasn't.

[snapback]240826[/snapback]

[/b][/quote]

[rharland_bmw]

Originally posted by rharland_bmw+Nov 30 2004, 08:57 PM--><div class='quotetop'>QUOTE(rharland_bmw @ Nov 30 2004, 08:57 PM)</div><div class='quotemain'><!--QuoteBegin-3serbmdubya@Nov 30 2004, 08:42 PM
codereaders are usually for obdII cars 96' and up. i dont think there were codereaders for older model bmws.* the stomp gas pedal works for my 92 325i you have to put the key in the run position and within like 3 seconds stomp the gas pedal to the floor, and let go 5 times

a nice DIY to help you out

http://www.pelicanparts.com/bmw/techarticl...ode_Reading.htm

[snapback]240807[/snapback]

Thanks for the reply!!! Fyi prior to 95 there is a special code reader for the older BMW's. I am going to buy one however it seems that the diagnotics are somewhat limited. When I first had this problem I took it to a dealer (I needed it fixed quick) and they read a code 10 meaning injector 1,3,or 5, they replaced a vacum hose and said it was fixed, however it wasn't.

[snapback]240826[/snapback]

[/b][/quote]

By the way I'm going to try the 3 second time limit, I hope it works.

[3serbmdubya]

good luck