It shouldn't leak (that would cause vac leak since it's past the AFM, turbo or not), but of course, if yours is stock and 30 years old, well.. anything could happen.
It sucks they cost so much now. I guess I was "lucky" that mine died long enough ago that I could afford to buy a new one, but not so long enough ago that it is completely worn out. :|
If you're running MS of course anything could work. Any 2 or 3 wire PWM IAC would be fine - BMW used them until the Valvetronic engines, which don't need an IAC because they don't use the throttle plate. Or anything from GM, Ford, etc.
Hyundai and Kia actually copy a lot of designs from the Germans, so that's another possible source. The former lead engineer of BMW Motorsports works there now (in case you didn't already know, hah!).
Funny thing about the GM stepper IACs. It's been ages since I've looked at, much less updated my Megasquirt 3 (since at least 2012), but last time I was looking at that stuff, they weren't reliable because the control mechanism couldn't track the position accurately enough, so they would "drift" out of synch. And also the hardware wasn't always good enough so it would overheat. I presume that's all solved now.
My cold idle actually sucks. It holds an "idle", but by that I mean it doesn't actually die - it's not smooth or steady. It's actually really obnoxious, it bounces up and down 500-1500rpm for at least 5 minutes before settling, ugh. But I drive the E30 so rarely now, and I have no intentions of keeping my current M20/Megasquirt, I just haven't bothered to even try to fix it.. it runs and drives just fine once it's warm. I try not to fix what isn't already broken...
I agree, it's not very pretty :p
But I appreciate that it works, and it cost you nothing. It's like my COP setup - yeah I had to buy the MS3 setup and wire it etc. But the plugs, coils, wires, etc. were dirt cheap (GM stuff) and in those cases, they are miles ahead of the Germans. Who ever heard of a GM LStruck coil failing? Nobody. I had a misconfigured MSQ, that caused the coils to overheat enough that it melted the connectors, plugs and wires to the coils. But those coils are still going strong 8 years later, and I have no idea how old they were when I bought them. Some BMW coils barely last 5 years...
It sucks they cost so much now. I guess I was "lucky" that mine died long enough ago that I could afford to buy a new one, but not so long enough ago that it is completely worn out. :|
If you're running MS of course anything could work. Any 2 or 3 wire PWM IAC would be fine - BMW used them until the Valvetronic engines, which don't need an IAC because they don't use the throttle plate. Or anything from GM, Ford, etc.
Hyundai and Kia actually copy a lot of designs from the Germans, so that's another possible source. The former lead engineer of BMW Motorsports works there now (in case you didn't already know, hah!).
Funny thing about the GM stepper IACs. It's been ages since I've looked at, much less updated my Megasquirt 3 (since at least 2012), but last time I was looking at that stuff, they weren't reliable because the control mechanism couldn't track the position accurately enough, so they would "drift" out of synch. And also the hardware wasn't always good enough so it would overheat. I presume that's all solved now.
My cold idle actually sucks. It holds an "idle", but by that I mean it doesn't actually die - it's not smooth or steady. It's actually really obnoxious, it bounces up and down 500-1500rpm for at least 5 minutes before settling, ugh. But I drive the E30 so rarely now, and I have no intentions of keeping my current M20/Megasquirt, I just haven't bothered to even try to fix it.. it runs and drives just fine once it's warm. I try not to fix what isn't already broken...
Originally posted by e30davie
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But I appreciate that it works, and it cost you nothing. It's like my COP setup - yeah I had to buy the MS3 setup and wire it etc. But the plugs, coils, wires, etc. were dirt cheap (GM stuff) and in those cases, they are miles ahead of the Germans. Who ever heard of a GM LStruck coil failing? Nobody. I had a misconfigured MSQ, that caused the coils to overheat enough that it melted the connectors, plugs and wires to the coils. But those coils are still going strong 8 years later, and I have no idea how old they were when I bought them. Some BMW coils barely last 5 years...
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