the car a 97 2.2l cavalier.
Alright i just switched my injectors to a 28 Ibs low impendence and installed a inline fuel pump into thecar. now the car won't start.
The pumps turns on and humm for a few seconds like their building pressure in the line .
But fuel isnt getting up to the regulator. the only thing i cut was the orginal inlet side fuel line to install the afpr. and wired in new injector harnesses
May question is why isnt their any fuel pressure in the feed side of the line.
it worked in before changing the injectors and installing the inline pump.
My guess line has a air leak, Also blockage some where. Fuel pump not properly primed.
FIRST>>>>>Youre supposed to put an AFPR on the return line.........do you have a gauge coming directly off of the regulator??? if you do have one on the fpr and not getting pressure then its the inline pump. This might be stupid but are you sure the inline pump is flowing the right way???
Yea, DC the fuel line right at the pump, and see if it shoots fuel out when its on. If it doesn't, but its obviously running, its in backwards.
im going to check that out today, taking off the line and turning on the pump to see if it flowing fuel at all and in the right direction, i dont know if i have a line crossed or my battery is low becuase it been sitting for like a month and a half, but when i first tried turning over the car the voltage was good, after a couple of times turning it over and priming the pump and resetting the security antitheft it dead. i took the inline pump off to see if that was causing problems, but when i did still no fuel. how would you suggest getting the air out off the lines. probably take the fuel tank down and change the pump filter and fuel filter
It says in your first post that you put the FPR on the pressure side of the line? whiteboyz is right, the FPR should be on the RETURN line, not the pressure line. DC the pressure line from the FPR (again, am assuming what you said in 1st post is valid) and see if you have fuel coming out. If you installed the FPR correctly, then DC the feed line from the RAIL, and let us know whats goin on. And a low battery would definitely cause the fuel pump to work sporadically, if at all, charge that badboy up and try it again.
If for some reason your inline pump ran for just a split second without fuel (like if it was in backwards ), its going to fail eventually. I had an MSD pump and found out the hard way. When i called MSD, they told me that the pump is gravity fed and it must be lower than the gas tank. which is basically impossible. Of course this isnt in the directions anywhere(as a matter of fact there were none) The guy I talked to even agreed that they should make people aware of this because it happens alot.
So if you get this setup to work.....be aware that you might be ripping it out soon.
It just sucks that our cars dont have the access panel for the fuel pump. If i didnt have to drop the gas tank , i wouldve just gone with an in-tank.
