Commander 950 install Now it wont start!!
#1
Commander 950 install Now it wont start!!
I finished my 950 install and now it won't start. So heres a quick synopsis on what I did.
Commander 950 with complete main harness
Innovate LM-2 wideband kit Added MAP sensor since I was MAF
Right now the car starts and then dies. I have tried several base maps with the same results. The car ran fine before I removed the factory ECM. Its a mostly stock 350 has a mild cam in it nothing that shouldn't stop it from running at least on a base map.
I have checked fuel pressure all ok. ECM power from OEM ecm power along with the pink/blk from under the dash for ignition. I am using a MSD 6al but it uses oe wires pink and white from the other harness.
Commander 950 with complete main harness
Innovate LM-2 wideband kit Added MAP sensor since I was MAF
Right now the car starts and then dies. I have tried several base maps with the same results. The car ran fine before I removed the factory ECM. Its a mostly stock 350 has a mild cam in it nothing that shouldn't stop it from running at least on a base map.
I have checked fuel pressure all ok. ECM power from OEM ecm power along with the pink/blk from under the dash for ignition. I am using a MSD 6al but it uses oe wires pink and white from the other harness.
#2
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Car: 87 monte aerocoupe
Engine: 383 HSR w/ novi 2000
Transmission: Built 4l80e circle d converter
Axle/Gears: Currie 9" 3.89 gears
Re: Commander 950 install Now it wont start!!
When it does start, how long before it dies?
#3
Re: Commander 950 install Now it wont start!!
Turn the key cranks for a couple of secs sounds like its gonna start. Only starts for a sec or two. I can get it to start for a another second or two by playing with the fuel map but ive gone up to 50 and down to 1 in the idle area and not much of a change. I have also disconnected the distributor plug for timing and it made no difference.
#4
Re: Commander 950 install Now it wont start!!
Ok so after further testing today it is defiantly fuel related. I was able to get it to run a little longer by adding starting fluid. So spark is good and fuel pressure is good. I am probably missing something stupid just dont know what it is yet.
#5
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Car: 87 monte aerocoupe
Engine: 383 HSR w/ novi 2000
Transmission: Built 4l80e circle d converter
Axle/Gears: Currie 9" 3.89 gears
Re: Commander 950 install Now it wont start!!
Can you email a copy of the base map and a datalog. I will PM it to you. Have a feeling it may be something to do with IAC.
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#8
Re: Commander 950 install Now it wont start!!
I got it to run!!! I found the MAP KPa load scale was not set right. But I did find out if you use non Holley pro base files the data gets corrupted when opened with the pro software. So I am now rebuilding my files with the pro base maps. Not sure how I got the old ones when I downloaded them from the Holley site.
I am sure I will be back for some tuning help..
I am sure I will be back for some tuning help..
#9
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Join Date: May 2007
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Car: 1987 Pontiac GTA
Engine: ZZ4 350 W/ HSR
Transmission: T56
Axle/Gears: 9 Bolt 3:45
Re: Commander 950 install Now it wont start!!
seiplentz,
I know this post is from 2014 but I wanted to touch base and see if you ever got it running. I recently installed a 950 and cant keep i idling long either. Thought maybe whatever you did could help me out also.
Thanks,
I know this post is from 2014 but I wanted to touch base and see if you ever got it running. I recently installed a 950 and cant keep i idling long either. Thought maybe whatever you did could help me out also.
Thanks,
#11
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Car: 1987 Pontiac GTA
Engine: ZZ4 350 W/ HSR
Transmission: T56
Axle/Gears: 9 Bolt 3:45
Re: Commander 950 install Now it wont start!!
You have any advice for a guy like myself just starting out with the 950??
#13
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Car: 1987 Pontiac GTA
Engine: ZZ4 350 W/ HSR
Transmission: T56
Axle/Gears: 9 Bolt 3:45
Re: Commander 950 install Now it wont start!!
I started a new thread. If you have time here is the link : https://www.thirdgen.org/forums/dfi-...y-running.html
I list all my specs in that thread. I'd love for you to take a minute and read it and see if you can find something i'm doing wrong.
I list all my specs in that thread. I'd love for you to take a minute and read it and see if you can find something i'm doing wrong.
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