SS346Ls1

Car cranks and wants to idle if we hold it around 1k rpms.. and then slowly let it down. If we just crank it it'll idle for a second then immediately die. Took it down the road twice and it'll miss at low rpms.. then clear up once we give it some gas. However if we let it come back down to idle it'll surge once or twice and then die.
Car is also hard to start at times, and will onyl start if given some throttle.
IAC has been replaced.. coolant temp sensor has been replaced.. and the vacuum leaks have been fixed. Hole has been drilled in the TB decently large.. and the idle screw has been adjusted to let more air in.

Any help is once again appreciated.

DietCoke

iTrader: (18)

Is it tuned?

SS346Ls1

yes, mail order tune from alan futral

SS346Ls1

UPDATE. Cam immediately dies upon start up.. it will stay crunk for half a second.. cam will hit three times and then it will die.

Only way car will idle is with the idle position screw turned all the way in.. letting lots of air in.. and then when it idles it will surge horrible.. from 300-1200.. wanting to die everytime it falls. With the idle screw in stock position car cranks and immediately dies.

SLowETz

iTrader: (12)

Try a crank position re-learn and/or cam position sensor. You'll need a TechII for crank relearn. Just a thought.....

ss rally red

iTrader: (8)

I promised myself that I would not post in anymore of your threads, even though I try to help anyone I can even you, mainly because you badmouth everyone, but I have to ask, WTF is a "crunk"

Fade2blk500

iTrader: (18)

what if the helps for poor craig j/k for real though this thing has got me stumped. so close to dyno so close.. lol

any help is good


-Craig

p.s. i already checked for shop towels in the intake.. j/k

ss rally red

iTrader: (8)

I have no problems at all with you Craig! It sounds like the IAC count is way off even with the mail order tune, do you have access to a scanner that can show you IAC count?

Fade2blk500

iTrader: (18)

No access to a scanner thus far . I called brother Josh to see if maybe we can get an autotap or hp tuners to borrow, he's going to find out for me tommorow hopefully. In the mean time are theree any sensors that could cause this??
I've tried unplugging the o2's, maf, resetting the pcm and what not. i drove it down the road just and it feels like it clears up when you give it the juice, which it feels like its got a good bit of at that. lol this damn car has been a nightmare. never had half this many problems with a vehicle, but at least now we got it back together just fixing the bugs is the hard part


Thanks
Craig

SidewayzOZ

iTrader: (11)

Come get my hptuners Craig I got some shop towels you can borrow too

Fade2blk500

iTrader: (18)

will it work for a 2000 model? if so then im down and trust me i got plenty of shop towels, i'm the shop towel king. You should know that... lol

screamin00ss

we all know what youre king of craig...

Jimmyz

iTrader: (3)

How can ANYONE do a mail order tune w/o sending the tuner a scan (A-Tap, HP Tuners, whatever) of whats happening with the motor? Been down that road, bad idea IMHO. Get a recording of a 15 + min. drive doing everything that represents your driving and send that data to the tuner. Should be a hell of a lot more accurate I'd think.

Happy Motorin' !

SS346Ls1

Not sure.. he told us to just send him the PCm and he'd tune it and send it back.. Alan seems to know his **** tho.

Yea.. the car just cranks and immediately dies.. if we hold the throttle open to keep it idling it'll find idle after like 30 seconds.. and then after another 30 seconds it'll either surge horribly or die.

And about "crunk" sorry.. I've been listening to way too much LiL Jon , nukka.

What would also cause the low RPM miss?

Fade2blk500

iTrader: (18)

im also the king over you gayron. lol hurry up and buy a cam so i can do the shoptowel mod to your motor lol

Fade2blk500

iTrader: (18)

yeah im going to get hp tuners and datalog it to see whats going on. hopefully that'll narrow it down. then we'll send alan back the pcm

Thanks for all the input
Craig