In need of assistance on a no-start.
Posted: Thu Nov 20, 2014 9:00 pm
I've posted before about this same car, and now that my semester is near over, I'll be spending the entirety of my winter break getting this damn car on the road.
I picked up a US Spec '84 633 5 Speed off craigslist just over a year ago. Car was a non-runner. The guy I bought it from bought it from an estate where the car had been sitting in a garage for almost 13 years. He tried and couldn't get it to run.
Here's where i'm at now.
The car will crank and start for 2 or 3 seconds and then immediately die. It will do this all day long.
However, one three separate occasions, it's started and ran like a champ. It will start with no issue, for a whole day, and then the next day, nothing. The days were all different (one day was damp, one day was ~75 degrees, the other ~80 degrees, so I don't see any pattern there), and it's been entirely random when she does it.
Once I do get it to start, it runs fine for a few minutes until it warms up, at which point the idle bounces between 800-1400RPM. It never dies, just lets the idle bounce.
What I can tell so far:
I'm getting adequate fuel pressure at all times (it never drops). I also had the injectors rebuilt.
I seem to always have spark. (Did new distributor, alternator, plugs, wires, cap and rotor, new coil, etc)
I've tried 3 ECMs. Determined the original was bad, and the other two haven't given me any issue (ran for a whole day on one twice and the other once- both came from running cars, so it shouldn't be causing anything).
Speed and Reference sensors have been replaced and are certainly good.
So bigcoupe, I need a hand. The car has spark, it has fuel pressure, so why won't it run? I've gone through just about every no-start e24 guide on the web, and nothing is poking its head at me. Any advice I can get would be much appreciated.
I picked up a US Spec '84 633 5 Speed off craigslist just over a year ago. Car was a non-runner. The guy I bought it from bought it from an estate where the car had been sitting in a garage for almost 13 years. He tried and couldn't get it to run.
Here's where i'm at now.
The car will crank and start for 2 or 3 seconds and then immediately die. It will do this all day long.
However, one three separate occasions, it's started and ran like a champ. It will start with no issue, for a whole day, and then the next day, nothing. The days were all different (one day was damp, one day was ~75 degrees, the other ~80 degrees, so I don't see any pattern there), and it's been entirely random when she does it.
Once I do get it to start, it runs fine for a few minutes until it warms up, at which point the idle bounces between 800-1400RPM. It never dies, just lets the idle bounce.
What I can tell so far:
I'm getting adequate fuel pressure at all times (it never drops). I also had the injectors rebuilt.
I seem to always have spark. (Did new distributor, alternator, plugs, wires, cap and rotor, new coil, etc)
I've tried 3 ECMs. Determined the original was bad, and the other two haven't given me any issue (ran for a whole day on one twice and the other once- both came from running cars, so it shouldn't be causing anything).
Speed and Reference sensors have been replaced and are certainly good.
So bigcoupe, I need a hand. The car has spark, it has fuel pressure, so why won't it run? I've gone through just about every no-start e24 guide on the web, and nothing is poking its head at me. Any advice I can get would be much appreciated.