vjr021 New member Apr 15, 2008 #1 Any suggestions on how I can tell I have a bad fuel pump, without just changing it? I pulled the cold start injector, and jump the diagnostic port, I get nothing. I checked the fuses. Could it be a bad ECU? Or Relay? HELP!!!! 1989 V6 thank you!
Any suggestions on how I can tell I have a bad fuel pump, without just changing it? I pulled the cold start injector, and jump the diagnostic port, I get nothing. I checked the fuses. Could it be a bad ECU? Or Relay? HELP!!!! 1989 V6 thank you!
vjr021 New member Apr 15, 2008 #3 I pulled the cold start injector, and jump the fule pump on the diag. port. No fuel. the truck won't start. I can get it to sputter if I use starting fluid, so I assume it is not spark. Is there a common problem with the 3.0 that would keep it from starting?
I pulled the cold start injector, and jump the fule pump on the diag. port. No fuel. the truck won't start. I can get it to sputter if I use starting fluid, so I assume it is not spark. Is there a common problem with the 3.0 that would keep it from starting?
fourwd1 Moderator Apr 15, 2008 #4 Well, you could run 12V directly to the pump, put your ear to the tank, and listen for the hum.
vjr021 New member Apr 15, 2008 #5 FYI - I had some rust around the windshield, apparently leaking H2O into the cab, it got on the EFI relay under the dash and rusted it out. $35 later from NAPA, and the truck fired right up!!!! thanks everyone (and Toyota's factory service manual) for your help! Vinny
FYI - I had some rust around the windshield, apparently leaking H2O into the cab, it got on the EFI relay under the dash and rusted it out. $35 later from NAPA, and the truck fired right up!!!! thanks everyone (and Toyota's factory service manual) for your help! Vinny
