carbon platinum 4's in two days

[Racer@heart]

i have used NGK and Denso's in my other BMW's and i dont like them at all...

[browntown]

what everyone else said get the coppers, check them in a week. They're cheaper anyways.

Before you become a racer that you are "@ heart", learn to read plugs. Need a visual reference? Click here for pictures and explanations of how to read plugs

And for the record, Beemers are motorcycles, Bimmers are cars. Hate to be the grammar police.

[browntown]

these are the bosch platinum 4's and to my understanding one of the best plugs to buy for your beemer... and i have tryed stock replacements... they lasted less then a hour of attempted tuning... the 4's last almost 2 days

ohhh?


Did he mean s52, instead of 62?
let us know how the m5 v8 swap goes, that sounds like a monster project

[Racer@heart]

ohhh?


Did he mean s52, instead of 62?
let us know how the m5 v8 swap goes, that sounds like a monster project

it is going to be a monster project... but its not the hardest thing i have done to date... i have had 12 second integras and a 10 second 68 gto. i know what i am doing and i do know how to read plugs... thats not what this was supposed to be about... i know what the plugs are doing and why they look like they do... i am just new to BMW's and was wondering if there is anything else that may cause this... i honestly dont think it has anything to do with my choice in plugs...

[arsevader]

it is going to be a monster project... but its not the hardest thing i have done to date... i have had 12 second integras and a 10 second 68 gto. i know what i am doing and i do know how to read plugs... thats not what this was supposed to be about... i know what the plugs are doing and why they look like they do... i am just new to BMW's and was wondering if there is anything else that may cause this... i honestly dont think it has anything to do with my choice in plugs...

Search for PLatinum plugs in E30s and you'll see why not use them. Older bimmers run slightly richer anyways expecially at startup and the tiny electrode in the platinum plugs can't handle it.

Get a set of Copper plugs (Bosch supers, even NGK coppers are decent)

Just realised you have an ETA, in this case get Bosch Silvers (Silber) Supers.

[RobertK]

Does you're car's exhaust put out a lot of black smoke? Have you tried replacing the O2 sensor.

[EtaSport]

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.

[DaN]

No platinum in any older BMW, newer ones use platinum plugs. Some use 2 electrodes, some use 4.
Problem is most likely not related to plug choice, but fuel mixture. Hows the air filter?

[fitz318is]

m42 + bosch+4's = good
m20xx + bosch+4's = bad

[Scott314]

these are the bosch platinum 4's and to my understanding one of the best plugs to buy for your beemer

No. Bosch Super FTW.

Also, Beemer = BMW motorcycle. Bimmer = BMW car ;)

[SchnellerVert]

Throwing out the BS flag....You are going to build this monster car yet you can't read the pages in a shop manual that tells you what plug is the recommended use.

Nor look at the photo in most repair manuals that show what a plug looks like after use?

[Rob]

m42 + bosch+4's = good
m20xx + bosch+4's = bad

I completely and vehemently disagree.

[The Fast One!]

I completely and vehemently disagree.

i vote rob. I dont run platinums in anything. I ran iridiums in my turbo car though.

[mcgrath]

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]

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

Throwing out the BS flag....You are going to build this monster car yet you can't read the pages in a shop manual that tells you what plug is the recommended use.

Nor look at the photo in most repair manuals that show what a plug looks like after use?