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Microtech LT-8 idle and starting problem

Old 07-06-10, 12:28 PM
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Jon R.
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Arrow LT-8 idle and starting problem

I recently upgraded my injectors to 850cc / 1200cc and also installed an Aeromotive FPR. I am trying to start my car and it sounds like it is running very rich and for some reasons sounds almost bridgeported....and that is on the verge of stalling out at idle. Can someone send me a map to get my car started so i can take it to a tuner.

Basic Setup:

Microtech LT8
850/1200cc
Aeromotive FPR
Denso 300lph Pump
Jacobs 1000
gt35/40 turbo

There may also be a wiring issue so if any of these symtops sound like a missing input to the microtech please direct.
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Old 07-08-10, 07:21 PM
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Map

I have looked though the archives and there are no maps for a non-streetported 850cc 1200cc injector base map. can someone please send me a map
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Old 07-08-10, 07:21 PM
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Set your static fuel pressure to 40 PSI.

Then start the car, and just pull some fuel out of the map where it is rich. Pull fuel at idle until the engine smooths out, then drive around and pull fuel until the car is at least smoothly drivable.

It will sound bridgeported due to the rich misfires.
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Old 07-08-10, 07:57 PM
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Jon R.
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The Fuel Pressure Gauage is steady at 40, but I dont know how to pull fuel or which map to pull it from. Thanks for the tips though
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Old 07-09-10, 09:07 AM
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If your TPS is calibrated properly, go to the idle map (Functions menu). Find the location where the engine is currently trying to run, then hit "M" on the keyboard to select program mode. Use the down arrow to slowly pull fuel out of that point and a few points around it. Then hit "M" again to turn off program mode.

You could always read the Microtech manual as well.
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Old 07-12-10, 09:39 AM
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I got in running smoother at idle, but when I try to drive it ...it hesitates real bad and comes close to stalling. Also when I jolt the gas pedal it also almost stalls. When I do anything other than pushing very...very gently on the gas it stalls out. I am assuming it is to rich. Which screen should I be adjusting for then I am try to accelerate? Once I get it so I drive it is going right to the tuner
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