PCM for turbo car
Originally Posted by Slowhawk
FYI- BS3 doesn't pass smog plug in test.
Our 99-02 LS1>BS3 Harness does not pass 100% out of the box, but it keeps the subsystems in place for the OBDII to still function. Besides tuning the stock PCM there is a slight modification and it can support the OBDII testing.
I do realize this is a thread about LT1's but the OP has a 94 F-body in his signature, and around here there is no more testing on vehicles that are pre-OBDII.
Originally Posted by dhdenney
OK I've been informed that speed and tach signals have to be translated by the PCM.
Tach no. puts out the same signal as would a MSD box you would run your tach off of.
Thread Starter
TECH Veteran
iTrader: (53)
Joined: Feb 2004
Posts: 4,433
Likes: 0
From: Monticello, Kentucky
Originally Posted by Jon @ Speed Inc
It doesn't? Well I know the BS3 by itself can not....but a car equipped with BS3 can still pass.
Our 99-02 LS1>BS3 Harness does not pass 100% out of the box, but it keeps the subsystems in place for the OBDII to still function. Besides tuning the stock PCM there is a slight modification and it can support the OBDII testing.
I do realize this is a thread about LT1's but the OP has a 94 F-body in his signature, and around here there is no more testing on vehicles that are pre-OBDII.
Our 99-02 LS1>BS3 Harness does not pass 100% out of the box, but it keeps the subsystems in place for the OBDII to still function. Besides tuning the stock PCM there is a slight modification and it can support the OBDII testing.
I do realize this is a thread about LT1's but the OP has a 94 F-body in his signature, and around here there is no more testing on vehicles that are pre-OBDII.
Thread Starter
TECH Veteran
iTrader: (53)
Joined: Feb 2004
Posts: 4,433
Likes: 0
From: Monticello, Kentucky
Originally Posted by 1INSANEGTO
Speed: I really could not tell you. On my setup with the TH400 its run via the speed sensor on the trans.
Tach no. puts out the same signal as would a MSD box you would run your tach off of.
Tach no. puts out the same signal as would a MSD box you would run your tach off of.
