Cant get idle dialed in. Need help
#1
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Cant get idle dialed in. Need help
so to prevent getting roasted i have been searching and trying different things all week. (i did use the search tool)
Ive tried going through what the tuner studio manual says and brianack has said in some other threads where you dial in the idle valve % settings but when i open the can test module for idle and try to adjust the idle % i can adjust from 0-100 with no change in idle. in another thread i read that if you unplug the idle control valve the car should die and when i unplugged it it stays running. right now im idling at 1050ish rmp and it bounces around. the other day i tried to start it with the headlights on it would die almost instantly so i know the voltage isnt getting compensated for.
vehicle is a 1.6 with gt2860rs bmw tps no A/C and now PS if that matters
could the icv be plugged or not working or am i just missing something
Ive tried going through what the tuner studio manual says and brianack has said in some other threads where you dial in the idle valve % settings but when i open the can test module for idle and try to adjust the idle % i can adjust from 0-100 with no change in idle. in another thread i read that if you unplug the idle control valve the car should die and when i unplugged it it stays running. right now im idling at 1050ish rmp and it bounces around. the other day i tried to start it with the headlights on it would die almost instantly so i know the voltage isnt getting compensated for.
vehicle is a 1.6 with gt2860rs bmw tps no A/C and now PS if that matters
could the icv be plugged or not working or am i just missing something
Last edited by matrussell122; 06-27-2017 at 01:52 AM.
#5
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No sure. It was my best friends car then when he assed away his dad gave me the car. I remember when he got the ms he bought it from a guy off a miata forum that builds them so maybe you? Haha
#7
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Sounds like either the ms isn't sending any signal or you have some unrelated mechanical or electrical issue. I'd start by testing it in test mode. If you get no buzz there's another issue.
#12
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well yeah, your idle valve isnt working at all :P
I think it has to do with those two wires on the expander. they look like they are both going back to s12, but they are on the wrong side of those drivers... it's probably shorting out the idle control circuit and the boost control circuit.
the unit has tell-tale signs that I built it, but I would never have wired the flyback that way.
I think it has to do with those two wires on the expander. they look like they are both going back to s12, but they are on the wrong side of those drivers... it's probably shorting out the idle control circuit and the boost control circuit.
the unit has tell-tale signs that I built it, but I would never have wired the flyback that way.
#13
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was just playing with it in the work parking lot and this time when i did the idle test i was able to fully adjust it. I did bump the frequency up from 150 to 200 but it starts increasing idle at 39-82. Would just upping the frequency start making the iac work? Im happy its working but dont want it to just as easy start not working.
Ill see where the wires go too in a few hours.
Ill see where the wires go too in a few hours.
#14
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So what happened was my boost solenoid was clicking and i unhooked it then on the home yesterday i got my idle figured out and my boost control. I has some screwed up outputs in there. Could someone take a look at my current tune and make sure my boost and idle tuning isnt totally jacked up i only have about an hour into tuning them. i get 12 psi right now
#18
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actually, as it, that's probably fine -- so you might not want to sweat it.
but there's a preferred method.
you just need a single wire from the expander to s12, no diode. but you need to move the wire to the other end of D2 or D5.
but there's a preferred method.
you just need a single wire from the expander to s12, no diode. but you need to move the wire to the other end of D2 or D5.