383ci help
Thread Starter
On The Tree
Joined: Jul 2003
Posts: 155
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From: Top Secret
383ci help 
i gut starded my engien last night and ther is one problem that i have when run the car and stop it the rbm gos to 3 or 4 then it gos back to 1rbm i dont know what is this,and when i change the mas air flow the GM one it gos batter but it steel be ther this problem.plese if some one know thes problem plese help.thanks.
Let me retype this for you 
I started my engine last night and there is a problem when my car goes to a stop.RPM goes to 3-4000 rpm(or 3-400??) and back to 1000rpm.I do not know what this is?When I changed the MA back to the GM one is got better,but there is still a problem.
Looking for idea's?
Can you list your mods?
I started my engine last night and there is a problem when my car goes to a stop.RPM goes to 3-4000 rpm(or 3-400??) and back to 1000rpm.I do not know what this is?When I changed the MA back to the GM one is got better,but there is still a problem.
Looking for idea's?
Can you list your mods?
Thread Starter
On The Tree
Joined: Jul 2003
Posts: 155
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From: Top Secret
thank you slowhawk you know iam not good in english but iam doing my best.
about my mods. 383ci from mti. stage2 Cylinder Heads.Z1 cam 236 585 112.
SLP Double-Roller Timing Chain.Jesel Roller Rockers.oil pump.crain lifters.ASP underdrive pullye.PUSHRODS.LS6 Intake Manifold.ported stock Throttle-Body.ARP cylinder head studs.Hooker Longtube Headers.Borla Catback Exhaust System.MTI Custom Computer Programming.NGK TR55 spark plugs.Taylor ThunderVolt 10.4mm Spark Plug Wires.SVO 30 Lb. Injectors.BMR Chrome Moly Adjustable Torque Arm.Hotchkis Sway Bar System.Hotchkis Lower Control Arms and Panhard Rod.Hotchkis Strut Tower Chassis Brace.and moser 12 bolt 3.7.
thanks for your help.
about my mods. 383ci from mti. stage2 Cylinder Heads.Z1 cam 236 585 112.
SLP Double-Roller Timing Chain.Jesel Roller Rockers.oil pump.crain lifters.ASP underdrive pullye.PUSHRODS.LS6 Intake Manifold.ported stock Throttle-Body.ARP cylinder head studs.Hooker Longtube Headers.Borla Catback Exhaust System.MTI Custom Computer Programming.NGK TR55 spark plugs.Taylor ThunderVolt 10.4mm Spark Plug Wires.SVO 30 Lb. Injectors.BMR Chrome Moly Adjustable Torque Arm.Hotchkis Sway Bar System.Hotchkis Lower Control Arms and Panhard Rod.Hotchkis Strut Tower Chassis Brace.and moser 12 bolt 3.7.
thanks for your help.
I had the same issues with my 383 right after the install. In Edit I multiplied the Idle Air table by 140% and changed the values in the "Airflow Decay In Gear tables to 1.0 from 0-6MPH. This fixed me right up. Driving in traffic is no longer a problem and the car is no longer searching for idle.
Originally Posted by FireHawk22
Do i have to get ls1 Edit to do that Reboot.
Thread Starter
On The Tree
Joined: Jul 2003
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From: Top Secret
Reboot.
About the size of my cam is 236/236.585/585.112 LSA its from the MTI
about the tune i am running the MTI tune and i cant find atuner that can take care of me because iam from over seise and we dont have some one that he is good in thes engine or the tuneing.
About the size of my cam is 236/236.585/585.112 LSA its from the MTI
about the tune i am running the MTI tune and i cant find atuner that can take care of me because iam from over seise and we dont have some one that he is good in thes engine or the tuneing.
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TECH Resident
Joined: Jul 2003
Posts: 858
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From: Everywhere
i had the same proplem when i installed the 383 Lunati Stroker in my luminaSS(GTO)
with a lot bigger cam then yours it was tunning proplem i got it fix with ls1edit
i'll be in UAE after a mounth or 2 i'll help u if u are somewhere around there ,,,
but i see that u don't have ls1edit so it will be better to call MTI tell them the proplem and send ur pcm or find another pcm and send it to them
with a lot bigger cam then yours it was tunning proplem i got it fix with ls1edit
i'll be in UAE after a mounth or 2 i'll help u if u are somewhere around there ,,,
but i see that u don't have ls1edit so it will be better to call MTI tell them the proplem and send ur pcm or find another pcm and send it to them
I agree with SilverTA the issue is tuning. Call MTI and have them send you a new PCM or ship tours to them. This issue should habe been taken care of on your initial tune. It seems to be a real common problem with bigger cams.
Thread Starter
On The Tree
Joined: Jul 2003
Posts: 155
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From: Top Secret
Thank you SilverTA for you help about the ls1edit i will have one soon i order that today and i will call the MTI to see what did they do with my PCM. and nice to have you in UAE i will be around ther some wher but i will not be in UAE
and thanks you Reboot.i whant to know is easy to do that in ls1edit or its to hard to do the tune in ls1edit.
and thanks you Reboot.i whant to know is easy to do that in ls1edit or its to hard to do the tune in ls1edit.