hey there guys...
i am running 8 injectors on my car, ms v2.2..i replaced my cooling fan with a larger one and fitted an auxiallary fan too.every time the fans kick in...the car stumbles...in real time display, the battery voltage drops to around 11volts and the rpm flickers between 600 and 1200 and i have to catch the car with a blip to the throttle...sometimes it dies.when the fans cut out...idle is ok...the alternator in the car is a 45 amp unit.
i once read about someone whose fan was causing noise in the rpm signal....is this the case or is my alternator running out of breath
idle and fan
Forum rules
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Bernard Fife
- Super Squirter
- Posts: 1009
- Joined: Mon Feb 16, 2004 3:15 pm
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Fastest95PGT
- Helpful Squirter
- Posts: 61
- Joined: Sat Jun 12, 2004 5:27 pm
- Location: Worcester, MA
- Contact:
Do you have any sort of idle control currently being used? I'm guessing no from your problem description. Is it possible to set up control of an IAC valve of some sort on your vehicle?
If you cannot use an IAC valve (or choose not to for whatever reason), I would suggest raising your idle as a bandaid for the issue.
If you cannot use an IAC valve (or choose not to for whatever reason), I would suggest raising your idle as a bandaid for the issue.
1995 Ford Probe GT ~ Megasquirted & Boosted
275whp/242wtq @ 5.5psi ---- 317whp/287wtq @ 8.5psi
^^^ (thanks to MSnS-E and dyno tuning by me!)
2003 GSX1300R (Hayabusa)
275whp/242wtq @ 5.5psi ---- 317whp/287wtq @ 8.5psi
^^^ (thanks to MSnS-E and dyno tuning by me!)
2003 GSX1300R (Hayabusa)
throttle stop was a bit loose so idle had dropped...fixed it and its better but still some spikes...i will post the datalog tomorrow....
there is something that is driving me crazy....on the tuning page of megatune,both the ve numbers are the same...its killing me...i cant tune the thing...the red and the green readings are the same...if i were to raise the red digit then the green one would increase too....exact same numbers...
i am running ms1 v2.2,megatune 2.20...its the only version i could get to talk to the ms.i am running fuel only....i had a couple of ICs burn out on the board that i got replaced...
the engine is a fiat 2liter twin cam...i am running a ct20 turbo,eight 20lbs injectors and the idle valve off the original l jetronic and planning to run a 7 pin HEI to control spark
there is something that is driving me crazy....on the tuning page of megatune,both the ve numbers are the same...its killing me...i cant tune the thing...the red and the green readings are the same...if i were to raise the red digit then the green one would increase too....exact same numbers...
i am running ms1 v2.2,megatune 2.20...its the only version i could get to talk to the ms.i am running fuel only....i had a couple of ICs burn out on the board that i got replaced...
the engine is a fiat 2liter twin cam...i am running a ct20 turbo,eight 20lbs injectors and the idle valve off the original l jetronic and planning to run a 7 pin HEI to control spark
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Bernard Fife
- Super Squirter
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- Joined: Mon Feb 16, 2004 3:15 pm
Fiat132,
Do you have the Dave cap installed? That would be the first thing I would try. There's more on it here: http://www.megasquirt.info/v22manual/mwire.htm#ignition
Lance.
Do you have the Dave cap installed? That would be the first thing I would try. There's more on it here: http://www.megasquirt.info/v22manual/mwire.htm#ignition
Lance.
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BraneDeadx
- MegaSquirt Newbie
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- Location: Modesto CA
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dont know if this would help or not but sure helped my idle problem... to start with when putting my motor together i undersized the crank pully so the entire pully system be running slower, with doing that the altnator spun slower to, i notice when around 800 rpm or lower id drop 13.4 volts to 12, anything higher then 800 rpm id get agood 14.4 .... so with head lights on and fans on this can become a problem, rpm would go up down up down.... i went into the injector settings and turned the battery correction for fuel injectors from .2 (default?) to .1, this seemed to help out a lot, no more idle stumbles... also im useing a Bosch style idle valve with PWM....
dont know if they can help out bud but thats my two pennies
dont know if they can help out bud but thats my two pennies
Im hear to take over everyone and there megasquirt, ive been there done that with my own EFI gizzmo's check my site out for more!! 
i dont know if the capacitor is there or not...i bought the unit pre assembled...i willl try to contact the person i got it from...what about the other strange things that i am seeing...the ve numbers and all...what could those be
thanks for the advise brain dead x ...what you are saying makes sense but there is nothing i can do now....i just raised my idle speed for now
thanks alot guys
thanks for the advise brain dead x ...what you are saying makes sense but there is nothing i can do now....i just raised my idle speed for now
thanks alot guys