4EyedTurd1

iTrader: (1)

Does anyone sell a mechanical fuel pressure gauge I can screw into the stock rail and lay on the cowl of a truck? Trying to track down what sounds like detonation. Truck is an 02 if it matters?

kgkern01

iTrader: (10)

Can you not just scan for engine knock? It would be more accurate than trying to determine it via fuel pressure.

2slow5.0

I bought a gage and had a hose made to length at a hydraulic shop. May just have to hit up an auto parts store for the proper fitting for the rail. But a good hydraulic shop should have everything on the shelf

4EyedTurd1

iTrader: (1)

I thought of that last night. I’ve got a cheap HF fuel pressure test kit and it threads into the fitting but you’ve got to take the schrader valve out beforehand. I may just have a hose made up at a local shop. Good news is idle fuel pressure is solid 58psi with the vacuum line off the regulator. Other news, my obd Bluetooth scanner and obd fusion doesn’t have an option for knock but there was a code stored for P0171, P0174 and P0443 so I’ve got something to look into. I’d still like to put a smoke machine on it because it’s only pulling 10.5” according to the scanner.

truckdoug

iTrader: (25)

you got HP tuners? you can log a $15 ebay pressure sensor through an analog input or like a 5v sensor input , EGR etc.

4EyedTurd1

iTrader: (1)

Unfortunately not yet.