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My E30 is cutting out

Posted: Tue Aug 04, 2009 10:07 pm
by BadMoonRising
Had a bit of trouble the other day. Was driving along, put my foot down and no power. The car wouldn't accelerate. Managed to roll it into a parking bay.

Had a little look under the bonnet. Scratched my head not really know what to look for. Started it back up got about two feet before it stalled.

Managed to start it again, got about a mile then the lack of power happened again. Started once more and managed to get home, felt it try and cut out a few times. Also a few times it felt like it was accelerating and going faster without me putting my foot down.

Got the day off work tomorrow. Want to try and fix it myself.

I'm thinking sparkplugs, fuel filter, fuel pump.

Anyone else had this? Any advice?

Re: My E30 is cutting out

Posted: Tue Aug 04, 2009 10:32 pm
by Barx325i
Is is a 4 or 6 cyl?

If it's misfiring like mad, I had a similar prob to this caused by a cored plug, which were brand new!

Check the intake & breather pipework for a gaping holes too..

Re: My E30 is cutting out

Posted: Tue Aug 04, 2009 10:33 pm
by don-king
Check the spark plugs, they may need replacing or just a clean :D

Re: My E30 is cutting out

Posted: Tue Aug 04, 2009 10:36 pm
by BadMoonRising
It's a 320i

Hoping its just the spark plugs

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 1:55 am
by murran
could be one of many things! more info required?

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 5:08 am
by ucpsale
Start with a full service, check the main earth to the engine / battery connections.

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 11:06 am
by BadMoonRising
Just started it up after four days. Started fine.

Have a leak on the floor. On idle it sounds like its struggling. Also a smell of fuel.

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 11:17 am
by Morat
What is the leak? Fuel, oil or coolant?
(or maybe just screenwash?)

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 11:24 am
by Barx325i
is the puddle all fuel?

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 11:31 am
by BadMoonRising
Morat wrote:What is the leak? Fuel, oil or coolant?
(or maybe just screenwash?)
Three leaks in fact :cry:

From the stains on the floor they're both in the middle of the car. First near the back of the engine, second seems to be about half way down the car. With another small one a coupe inches behind that. They're mostly dried now, but they looked golden in color.

Also the tips of exhaust had some droplets coming from it

Sorry for the terrible descriptions. Don't really know much about cars yet.

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 11:57 am
by dirtybry
hello,
my car had the same problem, i changed everything, even the afm. but the problem persisted. the fault was intermittent but got worse and worse.
in the end i found the cause.
it was the crank sensor at the bottom of the engine (front of engine), i was taking it out to clean it when i noticed that the wire (that goes across the front of the engine) was rubbing on one of the pulleys ( the plastic guard had fallen and dropped off) the wires were exposed and when they touched the pulley the car would lose power.
so, i taped the wires up and secured them with cable ties.

i hope this helps you

bry

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 11:59 am
by Barx325i
turn your ignition on again and you should hear the fuel pump spin up. if it starts dripping after a minut or so, it'll be fuel leaking under the pressure of the pump..

fyi, the pump pressurises a feed and return loop from your tank to the fuel injector rail. A pressure regulator FPR keeps a constant level of pressure in the rail so that flow through the injectors is manageable by the ecu.

finger the puddle. if you sniff petrol then this one problem...

it's possible it's rusty water though Image

Re: My E30 is cutting out

Posted: Wed Aug 05, 2009 2:14 pm
by BadMoonRising
The big rubber pipe connected to the afm is really badly cracked around the edges at the join.

Going to replace this. Could this cause some of the problems?

Posted: Wed Aug 05, 2009 2:22 pm
by johnl320
Yes it could well be

Re:

Posted: Wed Aug 05, 2009 2:31 pm
by Barx325i
almost certainly, with no power & almost cutting out..

soon after startup the ecu starts making decisions based on air volume coming past the flow meter. If there are holes inbetween this and the engine then all the air that's unaccounted for will be definately causing these probs

Re:

Posted: Wed Aug 05, 2009 2:35 pm
by BadMoonRising
Right going to buy a new one. Will report back.

Thanks fellas for the input.

Re:

Posted: Sat Aug 08, 2009 9:50 pm
by BadMoonRising
Fitted the new hose. Fired her up. Sounds a lot better on idle. And problem seems to have been solved.

Went for two hour blast. So much fun.

Thanks for help guys.

Re:

Posted: Tue Aug 11, 2009 4:21 pm
by BadMoonRising
Oh balls. It did it again.

Driven it for about four hours since I replaced the AFM hose. Been fine, but today at a juntion it cut out again.

Been doing loads of reading on here about cars with similar problems. Going to check the Crank Position Sensor, Idle Control Value and Throttle Postition Switch later.

Starting to feel a little out of my depth. Should have bought a Micra :mad:

Re:

Posted: Tue Aug 11, 2009 4:40 pm
by ProToZyKo
Is the fuel pump running when you get the problem?

Re:

Posted: Tue Aug 11, 2009 4:44 pm
by toby
Still leaking something?

Re:

Posted: Tue Aug 11, 2009 5:21 pm
by Barx325i
BadMoonRising wrote:should have bought a Micra :mad:
:banned:

Re:

Posted: Tue Aug 11, 2009 5:25 pm
by Barx325i
There's a pain of a pipe that goes from the throttle body to the cam cover. it runs right under the intake chamber (the curly one that looks like a giant ribcage) winkeye - this could be split etc. Again causing your stalling

Posted: Tue Aug 11, 2009 6:09 pm
by BadMoonRising
ProToZyKo wrote:Is the fuel pump running when you get the problem?
Um I assume.. Not very technical. How do you tell?
toby wrote:Still leaking something?
There is still something leaking. The leaks are running all the way down the middle of the car. Three in total. Need to borrow some ramps to get under and have a look.
Barx325i wrote:
BadMoonRising wrote:should have bought a Micra :mad:
:banned:
I didn't mean it. Just letting off some steam. E36 though hmmm
Barx325i wrote:There's a pain of a pipe that goes from the throttle body to the cam cover. it runs right under the intake chamber (the curly one that looks like a giant ribcage) winkeye - this could be split etc. Again causing your stalling
I'll have a look at that too. Thanks

Re:

Posted: Tue Aug 11, 2009 6:17 pm
by Barx325i
it has to be something relatively simple - don't be put off by the internal combustion fear winkeye

good luck anyway & don't give up on the old e30!

Re:

Posted: Tue Aug 11, 2009 6:21 pm
by BadMoonRising
Barx325i wrote:it has to be something relatively simple - don't be put off by the internal combustion fear winkeye

good luck anyway & don't give up on the old e30!
Sure you're right. It's all part of the learning curve I guess.

Not giving up just yet. I love driving it and looking at it too much

Re:

Posted: Tue Aug 11, 2009 7:07 pm
by ProToZyKo
You hear it ;) But first you need to find out if there's fuel you are leaking. If not brake fluid?
Anyway since you can see the leaks, push the car away bend over and smell. Try using a lighter.
Also check the fuel pipe going into the injection rail, mine looks like hell, surprised it still works ;) Maybe yours has a few holes in it?

Re:

Posted: Mon Sep 28, 2009 6:05 pm
by BadMoonRising
Just to update. After reading loads of help threads and never finding out what the problem was. It was the AFM.