Hello I am new to this list and the SpeedPRO World. I have recently purchased a SpeedPRO B2B system w/WB02 from Harry/PTE. He also set me up with a special interface cable from Fasttrackperformance for my 93 vette to allow the SpeedPRO ECM and GM ECM to coexhist in harmony. I was told that this would be the best way to go, since this is a street car and driveability is still important. Lockup TC, Air, Cruise, Etc.
I have reviewed all of the documentation and have come up with a couple of questions. See Below:
1. When connecting the WB02, do I need to install another bung in the pipe and add it to the existing 2 o2 sensors that are already there for the GM ECM or can I just use one of the existing spots to thread the new WB02 sensor into? If I remove a factory o2 sensor due I need to connect both GM ECM leads to the still operational 02 sensor to fool the GM computer?
2. The car is Supercharged (5-8 PSI) of boost so I went with a 2-BAR Map sensor. I am assuming that since the stock ECM still expects a 1 BAR map sensor that I will need to use both and wire them accordingly rather than just replacing the stock 1-BAR MAP sensor is this correct?
3. According to the Docs that came with the SpeedPro ECM. The injector harness is customizable and should be as follows:
Type (Firing Ord) A B C D E F G H
GMV8 (18436572) Blk Brn Ylw Grn Org Blu Gry Ppl (Default)
LT1 (18436572) Ppl Gry Grn Yel Blk Org Brn Blu
If the firing orders are the same why is the LT1 pinned out special?
The SpeedPRO documentation says that this harness configuration is configured to operate the injectors in a configuration that minimizes fuel pressure loss.
So my question is what order does the SpeedPro Bank/Bank system fire the injectors? I realize they fire in pairs, but which pairs? AB, AD, etc.
Rear
G H
E F
C D
B A
Front
Thanks In Advance,
Doug
I have reviewed all of the documentation and have come up with a couple of questions. See Below:
1. When connecting the WB02, do I need to install another bung in the pipe and add it to the existing 2 o2 sensors that are already there for the GM ECM or can I just use one of the existing spots to thread the new WB02 sensor into? If I remove a factory o2 sensor due I need to connect both GM ECM leads to the still operational 02 sensor to fool the GM computer?
2. The car is Supercharged (5-8 PSI) of boost so I went with a 2-BAR Map sensor. I am assuming that since the stock ECM still expects a 1 BAR map sensor that I will need to use both and wire them accordingly rather than just replacing the stock 1-BAR MAP sensor is this correct?
3. According to the Docs that came with the SpeedPro ECM. The injector harness is customizable and should be as follows:
Type (Firing Ord) A B C D E F G H
GMV8 (18436572) Blk Brn Ylw Grn Org Blu Gry Ppl (Default)
LT1 (18436572) Ppl Gry Grn Yel Blk Org Brn Blu
If the firing orders are the same why is the LT1 pinned out special?
The SpeedPRO documentation says that this harness configuration is configured to operate the injectors in a configuration that minimizes fuel pressure loss.
So my question is what order does the SpeedPro Bank/Bank system fire the injectors? I realize they fire in pairs, but which pairs? AB, AD, etc.
Rear
G H
E F
C D
B A
Front
Thanks In Advance,
Doug