'89 740 GL No Fuel Trace Questioln
#21
![Default](/forum/images/icons/icon1.gif)
Gremlins..... I ran the codes like you said. I got 1-4-4, which first indication is bad injector relay. So, even though earlier I had slightly loosened the input at the rail to see if there was pressure (yes, I know, it's not smart), I discovered there was plenty of fuel there, so no reason to snuspect bad relay, right????? Just for kicks I switched it out and what do you know....it cranked right up. Like I said; Gremlins... Now onto the leaky sunroof...or will it be the loping idle on the wagon? (already cleaned the throttle body & IAC)
#22
![Default](/forum/images/icons/icon1.gif)
On my 89 740 NA the RSR is on the coolant tank. As I mentioned I always carry a new FPR , RSR and CPS as after 376K miles usually one of these will fail and leave you stranded.
#23
![Default](/forum/images/icons/icon1.gif)
I guess I assumed the pump relay was good because I had pressure at the rail. But now I realize it could work in "On" position but not "Start" position. Thankfully, I have a handful of those laying around, so... Thanks, Pierce, for all the excellent guidance. I'm curious: What was your favorite Volvo?
Last edited by 2Small2Fail; 08-01-2019 at 07:36 AM.
#24
#25
![Default](/forum/images/icons/icon1.gif)
More Gremlins. Today I could not get it to start. I'm starting to think maybe weak pump or old gas? Anyway, ran the code function, it indicated bad relay again, so I pulled the tray, removed the pump relay and put a jumper in there; could hear the fuel pump running but it would not start. I eventually tried testing an injector as described by Pierce but somehow managed to create a spark in the process. Anyway I finally got it to start by pumping the gas pedal like you used to on a carbed vehicle. It started up making an awful racket and then settled into a purr. Only problem is: now when I tun on my headlights it's like I hit a kill switch and the car dies. The only other clue is when I turn on the headlights, the indicator for the right blinker is visible; not fully lit as when activated, just dimly lit. What have I done now?
#26
Thread
Thread Starter
Forum
Replies
Last Post
Franknstein
Volvo 240, 740 & 940
3
10-01-2015 04:02 PM