tach is way off
#1
TECH Regular
Thread Starter
tach is way off
So I got a 97 ws6 and recently swapd my 13:1 lt4 with 24x swap for a ls2 with a dbw Ecu.. e40 I believe and now my tach is off by aprox 50% . Now I've read about the pull up resister install. Will this fix my problem or will I need a Dakota digital calibrator? Someone has to of done this before I'm sure.. any help would be cool
#5
TECH Resident
iTrader: (1)
If the OP determines the signal can be adjusted in the E40 PCM, please post here and let us know.
Tipsy
#6
TECH Resident
I have an LS2/E40 that I'm swapping into an E36 BMW. Based on my research, the tach signal cannot be adjusted in the E40 PCM. I'm not stating this as fact but I know of at least two other LS2/BMW swaps that required the Dakota Digital box, one of which was previously an LS1 that had the necessary tach adjustment made in the 411 (LS1) PCM.
If the OP determines the signal can be adjusted in the E40 PCM, please post here and let us know.
Tipsy
If the OP determines the signal can be adjusted in the E40 PCM, please post here and let us know.
Tipsy
#7
TECH Resident
iTrader: (1)
Tipsy