theres fuel on the spark plugs, and the spark plugs are firing. what could cause it not to fire?
there is also no coolant in the oil so no headgasket leak.
there is also no coolant in the oil so no headgasket leak.
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maybe the spark plugs are drowning. In fuel... from excessive injectors....Tenured Automotive Service Professional - Avid BMW Enthusiast
Vapor Honing & E30 ABS Pump Refurbishment Service
https://mtechniqueabs.com/ -
Re: Cylinder 6 and 4 arnt firing
what injectors are you uysing and are you using to control them?Originally posted by E30godz
Probably Jordan is rightEuro M3'87 NogaroSilver/Euro E34 M5 '93/Porsche 993 TT 97' Euro/Porsche 993 Carrera 95' Euro/Skyline R33 GT-R
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He's using 30# injectors w/an SMT6 to dial back delivery, and a stock FPR.
"See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."Comment
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thats wierd....because like 2 days ago it was running great but then i decided to fuck with the AFMComment
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I've got a 325i in the driveway, we swapped the untouched AFM onto his car, and still ran into the same problems. Seems cyls 4 & 6 aren't firing, at least, when you pull the plug wire while the engine is running there is no change. Any other wires pulled result in a stumbling idle that eventually causes it to stall. Any ideas? We checked all the plug wires for resistance, which came out fairly even. All 6 are getting spark and fuel; we're going to do a compression test tomorrow, etc.
"See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."Comment
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check with bimmerphile
i belive he was having similar problems with his car
maybe i'm wrong it was awhile agoComment
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Have you tried switching out the spark plugs? Doning a simple plug wire test (put the wire next to a ground and look for arc) might not catch a broken spark plug. Detonation is one of the leading causes of spark plug failure, it can crack them. I would look into that, could save ya some time!
Matt
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he ended up replacing the whole fuel rail in his case, and it fixed the problem. I think E30godz's problem may rely with the AFM though, since that's what seems to have caused problems.Originally posted by BahnE30
That could have caused something else bad to happen, hence the reason it still misfires when they put a known working AFM on there.- Sean HayesComment
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a car should run without an AFM at idle. It'll be crap, but it'll work.Michael Spiegle
'01 Ford Escape / Daily Driver
'99 M3 / Track Car
'87 325is bronzit / wtf car
'06 Daytona Triumph 675 / Daily RiderComment
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That's what we're afraid of. I'm thinking the fuel rail may be to blame.
"See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."Comment
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i dont know how the fuel rail would be to blame for anything though...how can it "fail"Comment
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