brand new auto meter gauge is stuck wide open all the time, even ket on, when you key on it goes to zero then back to 30K and stays there, it kinda runs backwards, but stays at 30K all the time, rail pressure on stock non tune is around 27K right?
LMM: fuel rail gauge is WOT
- Thread starter cdbright
- Start date
any thoughts on a solution or wait till Autometer is open on monday? It seems like a short to ground as it pegs out, but when you key on it does the full check and goes to zero then back to full
Check wires where you tied into the rail pressure sensor circuits. 09 LMM is signal (purple wire) from gauge goes to orange & black wire. Ground (black from gauge) goes to white.
sooooo my 09 fuel rail gauge, wired for 09 orange/blk for hot and white for ground = truck surges and CEL on, wired for 08 yellow is hot and orange/black is ground = gauge pegs out at 30K and never changes even with key on, gauge is bad right?
Most likely. I've seen quite a few Autometer gauges that were bad here lately. I've never had one go bad it's always been faulty from the start. Is this a new gauge?