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W-Body for Life!
well, since your cam doesn't generate a lot of vacuum at idle, we raised the threshold of where the ECM will start thinking there is a problem with the MAP sensor.
this SHOULD prevent a MAP high DTC from being set during it's test period, at least it will as long as everything is working properly. if the MAP itself goes completely nuts(reading above the 91kPa when in a near idle condition), it should still set the code. much better than simply disabling it.
1995 Monte Carlo LS 3100, 4T60E,
OBD1 Conversion...for now, future plans include a 3900, T04E-46 (Knock-Off) turbo (For the 3100, ~T61 for the 3900), and a F40.
Latest nAst1 files here!
Need a wiring diagram for any GM car or truck from 82-06(and 07-08 cars)?
PM me!
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06-06-2011 05:02 PM
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Max
and i've got a spare map sensor in case it is the actual sensor being goofy.
I'll burn this chip and then let you guys know the results.
thanks
93 Firebird 3.4
Pacesetter Headers, Flowmaster 80, Comp 1.6 RR,Cloyes 2x Set, P&P Heads & Intakes, Custom Cam, Holley FPR, Ram Air Intake, Posi Rear w/3.42's & Disk Brakes.
Cam and Heads by 60Inclusive.com
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Max
Hey, so far so good. I installed the new chip, jumped the bird (battery was dead) and let it idle for a couple minutes. Then the moment of truth came and I popped it into drive and let it sit there for 5 minutes... Didn't stall out once. Reverse was fine too.
I don't want to declare it after one single test but it looks like the problem *might* be fixed.
How come we didn't change the map threshold sooner?
Ben has some explaining to do 
Robert, thanks a million my friend. Let's hope we never get that code again.
93 Firebird 3.4
Pacesetter Headers, Flowmaster 80, Comp 1.6 RR,Cloyes 2x Set, P&P Heads & Intakes, Custom Cam, Holley FPR, Ram Air Intake, Posi Rear w/3.42's & Disk Brakes.
Cam and Heads by 60Inclusive.com
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Originally Posted by
robertisaar
HORRIBLE idea... especially since A1 is entirely hacked, every single byte of calibration being adjustable as if we were GM calibration engineers themselves
Ultimately, aside from the concept, I wouldn't do it to my engines PCM. I would find a much better solution. Resistors are more like road side quick last ditch effort to get home kinda thing, i guess. lol
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Originally Posted by
tkoforpresident
Hey, so far so good. I installed the new chip, jumped the bird (battery was dead) and let it idle for a couple minutes. Then the moment of truth came and I popped it into drive and let it sit there for 5 minutes... Didn't stall out once. Reverse was fine too.
I don't want to declare it after one single test but it looks like the problem *might* be fixed.
How come we didn't change the map threshold sooner?
Ben has some explaining to do
Robert, thanks a million my friend. Let's hope we never get that code again.
That's great. Good job, I'm bringing my engine back to life after sitting 8-9 months. Winter to Summer temps too, outside. Crazy NE weather, does a number with time.
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Max
yeah thanks man, feels good to get the bird fixed up.
Of course as soon as I get the bird fixed my explorer starts acting up... brakes are grinding.. not good 
93 Firebird 3.4
Pacesetter Headers, Flowmaster 80, Comp 1.6 RR,Cloyes 2x Set, P&P Heads & Intakes, Custom Cam, Holley FPR, Ram Air Intake, Posi Rear w/3.42's & Disk Brakes.
Cam and Heads by 60Inclusive.com
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