2eighTZ4me Posted June 15, 2009 Share Posted June 15, 2009 82 ZX. The guy had the injectors replaced due to leaky seals/hose. Car won't start now. Got good spark and fuel. When I pull the fuel line to relieve pressure on the system, and then reattach, the car will kick off and run for about a second and then die. Repeated the process several times. My thoughts are that it's the FPR on the top of the intake. The damper on the rear by the pump only dampens the fuel pulsations from the pump. Yes? What do you guys think? Quote Link to comment Share on other sites More sharing options...
sweetleaf Posted June 15, 2009 Share Posted June 15, 2009 Could be lots of things. Put a FP gauge on it. Quote Link to comment Share on other sites More sharing options...
2eighTZ4me Posted June 16, 2009 Author Share Posted June 16, 2009 I'm 99% positive it has to do with fuel pressure, based on the tests I ran and the results. Also, based on the fact that the FPR has a tendency to go bad. Don't have a gauge, but guess it might be time to hit Harbor Freight.... Quote Link to comment Share on other sites More sharing options...
roger280zx Posted June 17, 2009 Share Posted June 17, 2009 I guess it couldn't be those damn fuel lines we ran backward from the filter could it? Ha ha! I have a spare intake with an fpr on it if you wanna try that. Good luck! Quote Link to comment Share on other sites More sharing options...
2eighTZ4me Posted June 17, 2009 Author Share Posted June 17, 2009 That's funny - that is the FIRST thing I checked. They were indeed hooked up correctly. I got a Sorenson on order from AutoZone - $42 - almost can't go wrong for that price. Thanks for the offer bro! Quote Link to comment Share on other sites More sharing options...
2eighTZ4me Posted June 22, 2009 Author Share Posted June 22, 2009 FPR is not the culprit - unless I got a bad one. Got a gauge on it. Reading 38psi on the hose leading in to the fuel rail. No reading (meaning 0 psi) on the return line. Got the same reading with the old FPR. I DO have a pressure gauge on my DD, and it reads about 22psi while running. Not sure where I should have been taking readings from though. Please advise! Popped the cover off the AFM and was able to hold the flap "lean" and got the car to stumble/run for about 5 seconds. I forgot my spark plug socket, so I couldn't look at the plugs. I'm suspecting the injectors. They were replaced by Meineke - not exactly the first place I'd take a ZX to have injectors replaced. I can't find a part # on the injectors themselves. They "look" to be factory fit, but they could be a different flow rating altogether I guess. The injector hoses say "Germany" on them - leading me to believe they are Sorensen injectors, but they could be the wrong rate. I pulled the plug to the aux air valve and to the cold start valve with the same effect. The car wants to run, but just can't get up over the hump. I checked the AFM boots - they're hard as a rock, but don't appear to have any cracks in them. The valve cover breather hose has a small crack in it, but probably only enough to cause a very small vacuum leak at best - hardly enough to keep the car from running. Where would YOU guys look next? Quote Link to comment Share on other sites More sharing options...
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