What is it? what does it do? Where exactly is it? and why is it so much more expensive than non-impulse?
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What is an impulse wire???
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What is an impulse wire???
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Originally posted by M3fan4evaWhat is it? what does it do? Where exactly is it? and why is it so much more expensive than non-impulse?
It's used by the Motronic ECU help fire the injectors. The ETA has no inductive wire and fires all of the injectors at once, the 325i fires the injectors in 2 batches using this cable for timing.
The other wires are identical. The 325i can run just fine without this wire too, it'll just fire the injectors in one batch. The only side effects being slightly lower fuel economy.
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I think it does more than create batch timing for the injectors. Consider that the Motronic 1.1+ has no flywheel sensors, but does have a toothed crank wheel. Speed/position are read from the crank wheel.
Maybe I'll try to disconnect the sensor before start-up, and do another test when the engine is already running.
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Originally posted by arsevaderI assume you are talking about the inductive pickup wire that is attached to the #6 wire on 325i spark plug wires as opposed to the ETA wires which have no extra wire.
Plus my 325i has nothing like this that I've seen...........
Sarcasm is a body's natural defense against stupid.
When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's £3.95 per minute.
"My mother never saw the irony in calling me a son-of-a-bitch." Jack Nicholson"
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Originally posted by cunninglinguistI think it does more than create batch timing for the injectors. Consider that the Motronic 1.1+ has no flywheel sensors, but does have a toothed crank wheel. Speed/position are read from the crank wheel.
Maybe I'll try to disconnect the sensor before start-up, and do another test when the engine is already running.
The pickup just reads when the #6 cylinder is at TDC.
Originally posted by lordofthewatersPlus my 325i has nothing like this that I've seen...........
Impulse generator is something different and I don't think that's what he's talking about.
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Originally posted by arsevaderDo you have aftermarket spark plug wires? It's an extra wire that is attached to the #6 wire close to the Distributor cap.
Originally posted by arsevaderImpulse generator is something different and I don't think that's what he's talking about.
Sarcasm is a body's natural defense against stupid.
When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's £3.95 per minute.
"My mother never saw the irony in calling me a son-of-a-bitch." Jack Nicholson"
Old age and treachery will always overcome youth and skill.
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i wonder if it's long enough to reach. I have to check my carRecent Rebranding!!
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Recent Rebranding!!
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yes, you are correct,
I'm doing the M30 conversion from an E32 735i, so that's where it came from, but as long as the idea's the same, i can move on
Thanx alot for all of your help guysRecent Rebranding!!
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Thats not M30 either.
Looks like S38 to me.Tenured Automotive Service Professional - Avid BMW Enthusiast
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