Where can I find a fuel pressure regulator with the proper 31 PSI control?
Yesterday I had a stupidity problem with my 2.4L MPI losing power and going into what modern cars do which is Limp Mode - not a YJ feature but that's what it seemed like and as I pulled into the driveway I barely had 25% normal power. It was relatively smooth, just no power. This happened shortly after checking out some local area flooding and driving down a road with about 6-8 inches of water and a strong current crossing the pavement. Glad I didn't get stuck.
So today I started troubleshooting by checking the plug wires and fuel pressure. In the end I found the one problem is the regulator keeps a steady 31 PSI with vacuum but never increases 8-10 PSI when the vacuum source is removed. I haven't checked the vacuum with a gauge yet but feel a good suction at idle with my fingertip. The vacuum lines and connectors look good. Pressure leak down test is ok for about 15 minutes.
31 PSI is where it needs to be under normal conditions but I don't feel like it works all the time.
I checked the internet, Amazon, big boxes, and they all offer one that fits but they say it's regulated to 41 PSI (or no info) and the complaints from YJ owners are they now get 140 miles per tank where they got 240 miles in the past. So the higher pressure isn't working.
Any idea where to find the proper one?
Now, to make a long story longer... My YJ fuel float still isn't working properly because the float is flooded and sinks so I always reset my trip odometer and fill the tank every 200 miles after the 20 gallon mod.
Well come to find out, as I was checking the fuel pressure I was getting erratic results at first so I wanted to flush the fuel rail by connecting a hose to the schrader valve port and turning on the key or jumping the fuel pump relay. Less than 1/2 a cup of gas came out then nothing. Rechecked and still nothing.
This should not happen because I was only 140 miles into a full tank yet all the pump was doing was pushing air.
Problem solved after I put four gallons of gas in the tank, primed the system, and now all is normal again. Runs smooth with power. Glad I made it home with 1/2 cup of fuel in the tank and didn't get stuck in the middle of the river.
So this brings me back to the fuel pressure regulator. Maybe at times it's exceeding the 31 PSI and cutting my range down to 140 miles/tank.
I want a 31 PSI regulator just to eliminate any more guessing.
Cheers
Yesterday I had a stupidity problem with my 2.4L MPI losing power and going into what modern cars do which is Limp Mode - not a YJ feature but that's what it seemed like and as I pulled into the driveway I barely had 25% normal power. It was relatively smooth, just no power. This happened shortly after checking out some local area flooding and driving down a road with about 6-8 inches of water and a strong current crossing the pavement. Glad I didn't get stuck.
So today I started troubleshooting by checking the plug wires and fuel pressure. In the end I found the one problem is the regulator keeps a steady 31 PSI with vacuum but never increases 8-10 PSI when the vacuum source is removed. I haven't checked the vacuum with a gauge yet but feel a good suction at idle with my fingertip. The vacuum lines and connectors look good. Pressure leak down test is ok for about 15 minutes.
31 PSI is where it needs to be under normal conditions but I don't feel like it works all the time.
I checked the internet, Amazon, big boxes, and they all offer one that fits but they say it's regulated to 41 PSI (or no info) and the complaints from YJ owners are they now get 140 miles per tank where they got 240 miles in the past. So the higher pressure isn't working.
Any idea where to find the proper one?
Now, to make a long story longer... My YJ fuel float still isn't working properly because the float is flooded and sinks so I always reset my trip odometer and fill the tank every 200 miles after the 20 gallon mod.
Well come to find out, as I was checking the fuel pressure I was getting erratic results at first so I wanted to flush the fuel rail by connecting a hose to the schrader valve port and turning on the key or jumping the fuel pump relay. Less than 1/2 a cup of gas came out then nothing. Rechecked and still nothing.
This should not happen because I was only 140 miles into a full tank yet all the pump was doing was pushing air.
Problem solved after I put four gallons of gas in the tank, primed the system, and now all is normal again. Runs smooth with power. Glad I made it home with 1/2 cup of fuel in the tank and didn't get stuck in the middle of the river.
So this brings me back to the fuel pressure regulator. Maybe at times it's exceeding the 31 PSI and cutting my range down to 140 miles/tank.
I want a 31 PSI regulator just to eliminate any more guessing.
Cheers