Roger-Dee
08-24-2008, 05:45 PM
I could call it done. The car runs fine and pull great, much more power than lh with much less boost. but...
It's been 3 weeks now that I'm messing with my idle setting. It's going to drive me crazy, at this point I'm thinking about a throttle stop and a GM on/off idle motor. I tried the setting of boris wich seems to be working for a lot of other poeple with no luck. I tried 500dollar740ti setting, kenny setting and even The aspirator setting and nothing will get me a good idle. I'm starting to think the problem is me, not ms or the 3 different iac valve i've cleaned/tried. The engine will start down to 60*f (coldest I have seen thus far) and won't stall in the traffic. It just never regulate to the same rpm.
When I first start it the morning, it will start at about 2500 rpm, drop quickly to 1000 then back up to 2200, and do the same thing like 4/5 times but reving a bit lower everytime until it settle at ~1100. It will do it with almost every setting I've tried, just a bit slower with some setting. The odd thing is... For a minute it could idle well at 950rpm with a given frequecy and idle dc, then I drove a bit it will be 150~200rpm higher or lower. Another odd thing; sometimes it will idle at 950 really well and the idle dc is moving by no much than +-1%. Then after a min the engine will slowly rev dowm and the idle dc goes up to compensate but as the idle valve is finally open enough for the rpm to catch up, it revs up fast to 2500+ then start to do the same thing it does in the morning... Could it be underhood temp getting too hot ?
When the engine do his drop from high to low rpm, the afr shows 19.9 so I assume fuel is being cut, could it be the ASE that make it too rich ? Edit #2; probably not since my ase is set to 10 second...
A little rundown of the setup (the important thing):
MS1 v3.0 with extra board / Plug'n'play kit for lh2.4
550cc high imp. injector
A cam 6* advanced
Plx wideband
IAT in the bumper
Please give me some input, anything to look for...
Edit: here's my msq.
It's been 3 weeks now that I'm messing with my idle setting. It's going to drive me crazy, at this point I'm thinking about a throttle stop and a GM on/off idle motor. I tried the setting of boris wich seems to be working for a lot of other poeple with no luck. I tried 500dollar740ti setting, kenny setting and even The aspirator setting and nothing will get me a good idle. I'm starting to think the problem is me, not ms or the 3 different iac valve i've cleaned/tried. The engine will start down to 60*f (coldest I have seen thus far) and won't stall in the traffic. It just never regulate to the same rpm.
When I first start it the morning, it will start at about 2500 rpm, drop quickly to 1000 then back up to 2200, and do the same thing like 4/5 times but reving a bit lower everytime until it settle at ~1100. It will do it with almost every setting I've tried, just a bit slower with some setting. The odd thing is... For a minute it could idle well at 950rpm with a given frequecy and idle dc, then I drove a bit it will be 150~200rpm higher or lower. Another odd thing; sometimes it will idle at 950 really well and the idle dc is moving by no much than +-1%. Then after a min the engine will slowly rev dowm and the idle dc goes up to compensate but as the idle valve is finally open enough for the rpm to catch up, it revs up fast to 2500+ then start to do the same thing it does in the morning... Could it be underhood temp getting too hot ?
When the engine do his drop from high to low rpm, the afr shows 19.9 so I assume fuel is being cut, could it be the ASE that make it too rich ? Edit #2; probably not since my ase is set to 10 second...
A little rundown of the setup (the important thing):
MS1 v3.0 with extra board / Plug'n'play kit for lh2.4
550cc high imp. injector
A cam 6* advanced
Plx wideband
IAT in the bumper
Please give me some input, anything to look for...
Edit: here's my msq.