carbon platinum 4's in two days

[Racer@heart]

checked and replaced that... not the prob...

Check to see if the cold start injector is leaking. You can just unhook the fuel hose and cap it with a bolt or something. Now run the car and see if that fixes it. If it does then the CSV is bad or the temp switch for it is bad.

[Racer@heart]

that all i was lookin for... thanks man i appreciate it a lot... too many punks on this site... when someone needs tech advice... don't be a fuckin dick and be bored with this... it just shows the immatureity of most of the people on this site and the respect that the dont have for other people... basically thanks for the help dude thats all i wanted to know...

Well, some more things for you to check. The black carbon is not going to be a sign of hot combustion chamber temps. It is caused by a cold burn which usually does not burn completely or misfires. What is the general running condition of the engine? Does it idle well, shake, stumble, hesitate? What are the vacuum numbers at idle? Your problem is more than likely linked to poor ignition. Did you change the coil when you replaced the other components?

If so then check the AFM signal output. I dont think the coolant sensor is your problem as I had a faulty sensor run on my car for nearly 6 months. As I never ran an o2 sensor it didnt matter anyway as the computer never went into closed loop. Even the o2 sensor being bad couldnt cause the plugs to carbon up that badly. This is way too much fuel, or way too little spark. The only other things to check are ecu, and injectors. Since the FPR was changed did you check the fuel pressure?

Like eveyone mentioned, say no to platinum at least not in a bmw. Bosch super is good too.

[Hawk]

Never run plats in an old BMW engine nothing worse. Go with the coppers. Any BMW tech will tell you this.

[EtaSport]

Never run plats in an old BMW engine nothing worse. Go with the coppers. Any BMW tech will tell you this.

I think we've determined this. Any updates yet?

[TopOfTheLine89]

Any updates? lol. Mine are carboning up real quick all the sudden.

[LINUS]

never fuckin looked at it call bullshit if you want but dude i blue print motors in my spare time... youll see...

Quite the mouth on you there, pal. Schneller beat me to it, -you claim a lot for not being too up to speed on copper vs. shitinum plugs.

So you have any pics of this monster motor laying around?

You blueprint motors & nobody you deal with in this venture was able to tell you about carbon fouling? Seriously?

As for real advice, what if after you verify your car is running correctly, but still fouling plugs - move up a heat range.

[nando]

Quite the mouth on you there, pal. Schneller beat me to it, -you claim a lot for not being too up to speed on copper vs. shitinum plugs.

So you have any pics of this monster motor laying around?

You blueprint motors & nobody you deal with in this venture was able to tell you about carbon fouling? Seriously?

As for real advice, what if after you verify your car is running correctly, but still fouling plugs - move up a heat range.

yeah, he beat you to it - by almost TWO YEARS. :rofl:

[dinanm3atl]

That's what I was trying to say. Plantinum plugs are no good for Bimmers.

That is a gross blanket statement and also wrong...

[LINUS]

yeah, he beat you to it - by almost TWO YEARS. :rofl:

You got me - it never dawned on me to look at the dates.

I'm a tool, here's proof.

[Massive Lee]

Guys. Platinum plus are great plugs. But only if they are installed on engines designed for them. Platinum plugs don't like engines that function on a too-wide range of fuel mixtures. But get them in the proper range (in the proper engine), and they'll last forever. On the flip side, while copper plugs are not the most high tech plugs, they were designed when engines would run fine rich or lean. Cold or hot. Which is not the case with modern motors running within very narrow parameters.

So, older motors (including M20s) should only have plugs for which they were designed for. That also applies to newer motors. So, what is the plug? Simply the one stated in the owner's manual. No need to throw shit at each others.

[silversleeper]

I wonder how his monster Beemer is coming along?

[e30Matt]

Nice to know Captain Obvious here decided to step in and preach to the choir.