Autometer gauges Fuel Pressure and A/F ratio gauge
#1
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Hey I was wondering if anybody knows what fitting I need for these gauges to install them, or if anybody has a step by step on how to do these on a 99 Z28? Also if anybody knows what fittings for the water temp on this car also. I have all 3 of these gauges but am not sure on how to go about doing any of this. Any help would be appreciated. Thanks in advance for any help you can give me!
#2
LS1Tech Co-Founder
iTrader: (34)
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I forget the size of the adaptor fitting you need to make the fuel pressure gauge work... maybe try a sponsor like Thunder Racing and see if they sell the fitting I got one locally but it was a pita.
The a/f gauge just required me tapping into the righ wire off the pcm...
The a/f gauge just required me tapping into the righ wire off the pcm...
#3
!Dial-up Director
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For the FP gauge check this thread
https://ls1tech.com/threads/showflat...86&fpart=1
For the air/fuel gauge you will need to run the purple wire from the gauge to one of the following Pins on the PCM..
Pin# 68
PPL/WHT wire
HO2S SIGNAL HIGH BANK1 SENSOR 2
Passengerside front 02
Pin#69
PPL/WHT wire
HO2S SIGNAL HIGH BANK 1 SENSOR 1
Drivers side front 02
Instead of splicing the wire at the PCM I spliced it in the wire bundle that runs on top of the fuel rail on the drivers side. Just look for a purple/white wire in there.
All you other connections are just power, grounds, and dimmer.
Justin
https://ls1tech.com/threads/showflat...86&fpart=1
For the air/fuel gauge you will need to run the purple wire from the gauge to one of the following Pins on the PCM..
Pin# 68
PPL/WHT wire
HO2S SIGNAL HIGH BANK1 SENSOR 2
Passengerside front 02
Pin#69
PPL/WHT wire
HO2S SIGNAL HIGH BANK 1 SENSOR 1
Drivers side front 02
Instead of splicing the wire at the PCM I spliced it in the wire bundle that runs on top of the fuel rail on the drivers side. Just look for a purple/white wire in there.
All you other connections are just power, grounds, and dimmer.
Justin