Engine cutout @ ~1800rpm..after basic maintenance...

[Midnight Sun]

BTW, I have brand new coolant sensor, and that is not what would cause these problems.

I am definitly leanings towards ignition related or perhaps a cam sensor.

[Midnight Sun]

I have this problem too.

Fucking odd, only when the temps get hot. Driving in the winter it is great. And then once the ambient temps gets around 90 it gets all fisky after running hard for about an hour.

Really odd, like when you give it gas it makes an almost rhythmic spuddering noise?

I cleaned my MAF out super well and the problem went away for awhile. But then came back, to the point that the car wont even start on days above 95* outside.

Sound semi-similiar?

[Eviltwin]

argh- also,
which ohm setting should I set my multimeter at, when looking for current strength on the coolant temp sensor current?

[Eviltwin]

How are your cap and rotor? Is everything stock? And does it happen at the same rpm every time (most important)? And what plugs are you running? For some reason the ecu only likes the oem ones. But it very well could be the ecu. Just went through some stuff recently with 2 bad ecus and they can do some funky stuff.

cap and rotor are good, plugs good...

I"m onto thinking it could be coolant sensor related, or ecu...

no mods whatsoever to engine...Stebro exhaust system, thats all

[Eviltwin]

Did you check the throttle position switich under the throttle. If it gets water in it it will cause the ECU to go crazy. You would notice that your mpg gauge will jump from one side to the other when the engine sputters and the engine temp gauge will fluctuate a little bit. I just bought my E30, it ran fine and then started sputtering. My E24 was doing the same thing and it turned out to be the cap and rotor. That's an M30 3.5L this one shares the same cap and rotor and much to my anger, replacing the cap and rotor made no f&&(!!ing diffrence. I read in another forum that it could be the fuel injector harness but my 325 didn't have one, but the tps was full of coolant from the throttle coolant heater leaking down on it. Thank God I'm a BMW Mast Tech and get parts at cost or I'd never own one of these. And here I am buying my 3rd. Boy I'm a Jackass.
Hope this helps. Remember, unplug the TPS and see if it helps. If not, sorry. Hell it only takes you a second.

tried that just now, still nothing...

I think I might be onto something tho...

SINCE you're a Bmw master tech...what do you think of...

coolant temp sensor causing all this sh*t...

like I said, car will start just fine- however, the temp gauge goes haywire...the 'coolant' light on the check panel is on...
RPM will run smooth up to exactly 1500rpm, whether clutch is engaged or not...than engine will cutout...will not go over 1500...sort of like a 'limp mode'.

if my coolant temp sensor, or wires encompassed with this sensor are loose, frayed, whatever...could this cause it to behave that way?

[beamertech]

Did you check the throttle position switich under the throttle. If it gets water in it it will cause the ECU to go crazy. You would notice that your mpg gauge will jump from one side to the other when the engine sputters and the engine temp gauge will fluctuate a little bit. I just bought my E30, it ran fine and then started sputtering. My E24 was doing the same thing and it turned out to be the cap and rotor. That's an M30 3.5L this one shares the same cap and rotor and much to my anger, replacing the cap and rotor made no f&&(!!ing diffrence. I read in another forum that it could be the fuel injector harness but my 325 didn't have one, but the tps was full of coolant from the throttle coolant heater leaking down on it. Thank God I'm a BMW Mast Tech and get parts at cost or I'd never own one of these. And here I am buying my 3rd. Boy I'm a Jackass.
Hope this helps. Remember, unplug the TPS and see if it helps. If not, sorry. Hell it only takes you a second.

[88bmw325]

i had a sputtering issue kine of like this.. was rust in the tank and the o2 bad.. just my 2 cents..

[e30josh]

check your crank position sensor and the connection up off the intake manifold.

[deansbimmer]

make sure the in tank fuel pump is working and report back.

[dark89e30]

How are your cap and rotor? Is everything stock? And does it happen at the same rpm every time (most important)? And what plugs are you running? For some reason the ecu only likes the oem ones. But it very well could be the ecu. Just went through some stuff recently with 2 bad ecus and they can do some funky stuff.

[Eviltwin]

baiscally fuel is getting cuttoff mid throttle.

everything is f'ken kosher...I'm getting frustrated.

ECU?

[Eviltwin]

Dipshit, I wasn't even making reference to this mistake. You are seriously Fn dumb. The point was; what happens between those RPMs? F urself 2x. And Eviltwin, more info would be great. And these engines don't come with a MAF (does yours have one?)

I meant AFM (air fuel meter)

[Eviltwin]

fuck nevermind, it's doing it again

[dark89e30]

I didn't mean you, I meant dark89e30. You made an honest mistake. He dicked around like he didn't know what you were talking about, when it was obvious what was going on.

Dipshit, I wasn't even making reference to this mistake. You are seriously Fn dumb. The point was; what happens between those RPMs? F urself 2x. And Eviltwin, more info would be great. And these engines don't come with a MAF (does yours have one?)

[AndrewBird]

right, sorry...rough night- I meant 1800rpm-2000rpm...not K

checking MAF, ICV now

I didn't mean you, I meant dark89e30. You made an honest mistake. He dicked around like he didn't know what you were talking about, when it was obvious what was going on.