2k brick wall

[Shangsta]

Ok I tried searching and could not find anything useful. I have an 86 325e which has been running fine, last week i took the car to go meet up with some friends and it just kept cutting out under load and eventually died. I got it home an suspected the fuel filter. Replaced that today, car starts up and idles fine, and will rev with no problems in neutral. However when you drive it, under load it just starts cutting out at 2k. Its not consistent either, it will drive fine then just lose power, if you downshift sometimes you can get it to kick back to life, other times it just turn off. any ideas?

[Pussy30]

Might be completely irrelevant but my friends volvo would rev to like 2500 and just not go any higher, turned out to be the throttle position sensor. Im guessing its a similar sensor issue.

[gearheadE30]

By cutting out, you mean it completely dies or just feels like it loses power under load, but still is at least trying to fire? If it's the former, I'd guess crank sensor, otherwise you have some sort of fueling problem.

[pharow]

I just had a problem like this. It turned out to be the fuel pump.

[Vince30]

I just had a problem like this. It turned out to be the fuel pump.

Fuel pump would be my guess.

[call me jack]

is it always under load? or can ease past the 2k mark? what does your tac do when it starts cutting out?

[call me jack]

By cutting out, you mean it completely dies or just feels like it loses power under load, but still is at least trying to fire? If it's the former, I'd guess crank sensor, otherwise you have some sort of fueling problem.

My eta have the first stated issue, and yes it was one of the crank sensors. One of symptoms was that the take would start to jump all over the place when it would cut out. intermittent problem, too

[BrownBeanE30]

yup its the crank censer

[Harry's E30]

sounds exactly like what happened to me so I replaced the fuel pump and it hasnt happened since.

[Shangsta]

is it always under load? or can ease past the 2k mark? what does your tac do when it starts cutting out?

Ill give it another drive around the block tomorrow morning to see what the tach is doing. The car can be eased past 2k but it doesnt really accelerate(the rpm will slowly go up but its not going any faster) so you have to give it more gas and then It starts cutting out. Ill look into the crank sensor and the fuel pump, the pump was one of the things I thought might be the culprit. Anyone know if there is a way to test the crank sensor?

[Scywrath]

My faulty fuel pump relay made similar symptoms.

[TexasTerp]

My faulty fuel pump relay made similar symptoms.

Check this as well! before you buy a new fuel pump. this was the problem I had with my e36

[E-Thirty]

A friend had this issue and it turned out to be the fuel filter.

[Vtec?lol]

A friend had this issue and it turned out to be the fuel filter.

He changed that.


OP- pop off your rear seat and check the connection at the fuel pump. The connection corrodes and starts cutting power to th pump and will usually result in a fried relay. This is exactly what happened to mine and shortly after I had to replace the fuel pump.

mine would start and idle superb, but under load past 2k it would start to stutter and stumble. Got some new connectors, relay, and fuel pump and I was a happy camper. You should look to spend about $250 for a really decent pump and such.

[mamzak]

Is it bad that I was hoping this thread would be about someone R3V-ing a car worth $2k into a brick wall?