PISSED OFF!! help please.
Thread Starter
TECH Enthusiast
Joined: May 2004
Posts: 666
Likes: 0
From: DFW/Waco, TX
PISSED OFF!! help please. ok heres the deal.. had my car for about 3 months after about 2 weeks i noticed a problem and it was reoccuring basicly i start my car and its almost like it wont kick in.. i have to hold down the gas for like 30 minutes and slowly go from about 2500 rpm to about 800 rpm which is the idle point.. when i start it sumtimes my rpm will jump from 1100 to 300 and back up to 1100 and down to 300 and then position itself. if i go to quick after letting it idle with no foot on gas.. it will sumtimes die. and then the check gages light comes on... i supposibly got it fixed at this goodyear shop they gave me sum bs about my MAF and ended up costin me 400 to fix. the next day the problem is still there.. i just got back from vacation so my car got sum rest.. but the same problem presist.. and now the service engine light is on.. its been doin this for about 2 months and i have had it.. i thinkin about takin it up to chevy dealer and seeing what they say.. anyone have any ideas? it runs pretty rich by the way.. but i mean once you get going you have no problems its just when you start the car after letting it sit for more than 3-4 hours.. help is greatly appreciated thanx.
Thread Starter
TECH Enthusiast
Joined: May 2004
Posts: 666
Likes: 0
From: DFW/Waco, TX
yea well the code last time when it was doing this was to the MAF so says goodyear on there scanner or whatever and they said they fixed it but it was doing it again the next day.
TECH Regular
Joined: Apr 2003
Posts: 413
Likes: 0
From: Atlanta, GA
Originally Posted by 99CamaroSS_
you positive? how much for a tune.. and what about service engine light..?
Autozone used to scan cars for free and they may still do this. I haven't checked but you could give them a call or any auto parts store.
Their may be trouble codes that are not setting your SES light.
If you don't have any codes you just need somebody that understands what normal range values for O2 readings, IAC, MAF, etc.. and use something like Autotap, EASE, EFI Live, Tech II, Actron, or whatever and have them set in your car while you crank it and they should be able to see what is out of range.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
TECH Enthusiast
Joined: May 2004
Posts: 666
Likes: 0
From: DFW/Waco, TX
it just pisses me off. a tune sounds like it would probably help.. not to mention i run a little rich. need to get that twerked a little.. maybe JRP would know.. he knows everything.. lol
Could be the iac sensor. Could also be just too rich at idle in open loop. Usually takes me 10 minutes and a couple adjustments to dial in the idle with ls1edit. I set it to about 15.1 -1 af on the wideband at idle by adjusting the idle set screw on the tbody and playing with the main ve table. A competent ls1 shop should be able to quickly get your problem figured out.
Thread Starter
TECH Enthusiast
Joined: May 2004
Posts: 666
Likes: 0
From: DFW/Waco, TX
Originally Posted by strokedls1
Could be the iac sensor. Could also be just too rich at idle in open loop. Usually takes me 10 minutes and a couple adjustments to dial in the idle with ls1edit. I set it to about 15.1 -1 af on the wideband at idle by adjusting the idle set screw on the tbody and playing with the main ve table. A competent ls1 shop should be able to quickly get your problem figured out.
TECH Junkie
Joined: Dec 2001
Posts: 3,242
Likes: 0
From: Lakeland, FL
It could be the IAC counts being off? Maybe the motor is broken. My car would also stall when one of the 02's was acting up but this was only on warm starts. I would not trust what good year says and I would read/pull the code myself. Like they said above you can go to autozone and they will pull it for you.
have you had a tune at all or are you running all your mods on the stock tune? even with a small cam the PCM should be able to compensate for it. i would do what monodax says, log some data with atap/efi from startup to full operating temp and see if anything pops ups. then go from there.
TECH Enthusiast
iTrader: (10)
Joined: Aug 2002
Posts: 720
Likes: 1
From: Arlington, TX Congestion City
You can go to RPM in Lewisville, or AMS in Arlington and either one fo them will be able to scan it and fix it for you. If it is a tune you want I recommend RPM unless your all out race.
TECH Enthusiast
Joined: Dec 2001
Posts: 601
Likes: 0
From: Texas
99CamaroSS,
Having an automatic and a cam will require tuning - I had a 216/220 cam and I had to have my Z tuned cause it would stall at every single light. It ended up requiring an IAC adjustment and increasing the DIS (desired Idle) to 800rpm.
A tune can cost anywhere from $300-450 depening on where you go, if all you want is a code read Im sure there are plenty of people nearby that can help - hell if you cant find anyone in short distance, drive up to McKinney and I'll scan it for you.
Also, Id suggest you wait for a tune since it seems your waiting on your LSX. A re-tune may require dyno time (assuming its dyno tuned) and that usually runs me $50 at the shop I goto.
When it comes time to have it tuned, definitely goto RPM Motorsports...
Hope this helps.
Having an automatic and a cam will require tuning - I had a 216/220 cam and I had to have my Z tuned cause it would stall at every single light. It ended up requiring an IAC adjustment and increasing the DIS (desired Idle) to 800rpm.
A tune can cost anywhere from $300-450 depening on where you go, if all you want is a code read Im sure there are plenty of people nearby that can help - hell if you cant find anyone in short distance, drive up to McKinney and I'll scan it for you.
Also, Id suggest you wait for a tune since it seems your waiting on your LSX. A re-tune may require dyno time (assuming its dyno tuned) and that usually runs me $50 at the shop I goto.
When it comes time to have it tuned, definitely goto RPM Motorsports...
Hope this helps.
I would remove the iac motor and clean the carbon from it. I would also go to autozone and get them to hook there scanner to it, and see what code it set like someone else suggested.
TECH Enthusiast
iTrader: (10)
Joined: Aug 2002
Posts: 720
Likes: 1
From: Arlington, TX Congestion City
Originally Posted by Zero2Sixty
99CamaroSS,
Also, Id suggest you wait for a tune since it seems your waiting on your LSX. A re-tune may require dyno time (assuming its dyno tuned) and that usually runs me $50 at the shop I goto.
When it comes time to have it tuned, definitely goto RPM Motorsports...
Hope this helps.
Also, Id suggest you wait for a tune since it seems your waiting on your LSX. A re-tune may require dyno time (assuming its dyno tuned) and that usually runs me $50 at the shop I goto.
When it comes time to have it tuned, definitely goto RPM Motorsports...
Hope this helps.
