Stalling Feeling

[Jayzzle]

So it's like this, the last week or so, while cold a lot and sometimes when normal temp, when I accelerate, it feels like the car is going to stall every few seconds, like it feels like I will stall, then a surge of power, then another stall feeling, then surge, stall feeling, surge etc for about 20 seconds and then it seems ok until I press the pedal again. All that happens within a second of each other.



At first, I thought it was the AFM because of the way it idles, like 700 when cold and 400 - 500 when warm, but I just changed it and it's idling a bit better now, like 750 ish at normal temp, but the problem is still there.

It's a 318i Touring. Thanks for any help you can provide.

[Tommek]

Sounds like the blue temp sensor is bad.... test it here's how :

http://www.e30zone.net/e30zonewiki/index.php/Blue_Plug

[Jayzzle]

Thanks guys, I'll let you know if it's that or not

[Jayzzle]

So I did the test, with the multimeter at the ECU, it says I should be seeing between 3500 and 4000 ohms but I'm only getting between 66 and 100 o.0. Should I be concerned about that? I may well be doing it wrong but I don't see another way to do it. Cheers.

[Tommek]

Check it at the sensor plug in the cylinder head. If it has the same reading, change it.

[Jayzzle]

Ok I should have thought of that. Many thanks.

[Jayzzle]

So I couldn't figure it out, and I changed a HT lead that was broken, and now it's the opposite? Fantastic Idle (like 1200) and performance at cold, and shitty idle (like 400) when hot and no power at all.

[Jayzzle]

Ok so I fixed it. I changed the blue temp sensor as you suggested, but it was still the same. I changed the injectors and it was still the same. I checked through wiki, and it turned out to be either the TPS or the ICV, both were full of shit. I cleaned them both at the same time so not too sure which one specifically it was. But it runs great now. Thanks for your support.