E30 cab continued...

Post Tue Apr 16, 2013 6:05 pm

Hi guys - having an on going problem with my cab. Some of you may know that recently I purchased an ECU thinking it would fix the problem because it looked like the ECU had some water in it - anyway it's only running on 1 cylinder...I don't think the ECU is the problem. Can you guys kindly suggest what we should now look for next because we're running out of things to look for. So far we have changed the dizzy cap, crank position sensor / pulse generator, spark plugs and ECU.

Thanks

Post Tue Apr 16, 2013 6:58 pm

Ignition leads connected to the new distributor cap in the correct order?
What do the spark plug tips look like?
Compression test may be a good idea.

Post Wed Apr 17, 2013 9:08 pm

Hi sorry I couldn't get to the garage today - I'm looking to go tomorrow so I will get the compression numbers and ask about the spark plugs. It's now finally running but still overfilling and running a bit rough. The guy doing the work said it needs a new AFM.

Post Wed Apr 17, 2013 9:11 pm

What engine?, i have a spare AFM for a M20B20 (320i) from a cabby if your looking..bit tatty but in good working order.

Post Wed Apr 17, 2013 11:45 pm

If you think the AFM may be faulty, then TEST it. I would have very little confidence in a mechanic who's idea of fault finding is to swap random bits until it works.

Post Thu Apr 18, 2013 5:53 am

Hi - it's for a 325 thanks. Brian...how do we test the AFM? The guy said when he unplugs it - it seems to run fine and when he plugs it back in...well it just runs like crap.

*And I meant over fuelling

Post Thu Apr 18, 2013 9:49 am

Connect a 6 or 9 volt battery across it, and monitor the output voltage while moving the flap by hand - it's all in the wiki. Don't forget that the inlet air temp sensor is in the AFM housing as well, and also needs checking.

Post Mon Apr 22, 2013 6:52 pm

Hi Brian - thank you for your help. I just wanted to say that the car is working now. Once again thanks

Post Tue Apr 23, 2013 5:22 pm

BIGJO wrote: I just wanted to say that the car is working now. Once again thanks

So what did you do to fix it?

Ben

Post Thu May 09, 2013 6:10 pm

Hi Ben only just saw your message - the mechanic somehow managed to get it running and I took it for a hard drive. The next day it was ticking over perfectly. Because the car has been sitting around for ages with water in the ECU I think the car just seized up.