Best Place to get my ECU scanned?

[CodyLtr]

My check engine light came on and the car has a slight loss in power and is getting 4-6 MPG less. Where would be the best and cheapest place to get the ECU scanned for error codes? I have a feeling its an O2 sensor thats pooped out on me.

[Rigmaster]

do a search for "stomp test", you can usually check the codes yourself. Most places that have the generic scan tools (Autozone, Pep Boys, etc) aren't gonna work on your E30. You can buy a code reader that fits the round diagnostic plug and do it yourself, but it's cheaper to do the stomp test first and see what you find.



Bret

[e30pwr]

http://e30world.com/fuel/BMW-E30-DME-Motronic-fault-codes

[CodyLtr]

My car is an 86 so i guess no stomp test for me. Would my local BMW dealership do it for cheap(probably a dumb question).

[Rigmaster]

My car is an 86 so i guess no stomp test for me. Would my local BMW dealership do it for cheap(probably a dumb question).

They'd probably charge you 1 hour, and I think the hourly rate around here is ~$100.

So, if you think it's the O2 sensor, just replace it- it probably needs to be replaced anyway and you'll save the diagnostic fee.

[nando]

honestly I'd be surprised if the dealership would even do it. All the old guys who know these cars are long gone - if they even have the tools for it anymore they're probably buried where nobody wants to get them out.

[eyagel]

our snap-on modus has a round connector that fits e30's. check your local fix-em shops

[James Crivellone]

86 325's in stock form do not have a check engine light

[StereoInstaller1]

86 325's in stock form do not have a check engine light

nor do they have a "reset" if it were a 153 ECU.

So, yeah, go remove the ECu from your car and post the numbers...the last 3 anyways. Nothing before the 173 has "stomp" reset.

[lordofthewaters]

But if it really is just a 325 (eta) it won't have a 153 or 173, and won't do the stomp test anyway. But did they produce base etas in 86? I know they did in 87...........

[James Crivellone]

But if it really is just a 325 (eta) it won't have a 153 or 173, and won't do the stomp test anyway. But did they produce base etas in 86? I know they did in 87...........

my car is (was) a base 86 325

The 86/87 ETA's should have an 027 Motronic 1.0 ECU

[StereoInstaller1]

The 86/87 ETA's should have an 027 Motronic 1.0 ECU

Doesn't that one basically "Auto-reset", as in fix the issue and the light will stay off?