wanna build my 2.2 up for more boost!
#752
Senior Member
If the pump is getting too hot it would be that its getting over worked, from the voltage supply not being adaquate, the rewire could help by giving a little more overhead on the voltage so the pump doesn't need to work as hard to keep up with the limited voltage. Have you tried looking at the fuel pressure as the cars running? Get a test gauge, run the car, If you are having supply issues you should know right away by the output on the gauge. Hopefully that bit of troubleshooting can lead you down the right road.
#757
maybe. I tried driving it with just the key on the car so there was no weight on the ignition but it still stalled on me. I haven't checked spark yet tho how do i check coil packs without replacing them? I have no misfire codes or anything like that. and yes it just shuts off the same way it would if someone turned it off with the key
#758
Senior Member
You're gonna need two people to check spark. Have to test one at a time make sure you turn off fuel. And have someone crank it while the other person has the Coil out testing it with a conductor of some sort. Obviously make sure they're not going to get shocked at all. And have a towel or rubber between the conductor and them. You should see a blue spark. If its anything like orange then I'd replace it. There are some fail safes just fyi too
#759
Senior Member
maybe. I tried driving it with just the key on the car so there was no weight on the ignition but it still stalled on me. I haven't checked spark yet tho how do i check coil packs without replacing them? I have no misfire codes or anything like that. and yes it just shuts off the same way it would if someone turned it off with the key
#762
Senior Member
So if you leaving the key on you lose pressure?it should pop to ~50 psi and stay there unless you re leave the pressure from the schrader valve or run the car with the pump fuse out.If your losing pressure with the engine not running,then the check valve in the assembly is defective.Not too sure if that would cause the problem those as the pump should still hold pressure while running.Very confusing.Maybe try loading the stock tune and see if it does the same(dont drive obviously) and yes the car will run with the stock tune(mine did with stock tune,SC stuff and 60's)Just made sure it still ran after putting the eaton stuff on lol.it'll miss a bit but itll lean itself out and idle
#767
Senior Member
#768
what is the check valve in the fuel pump assembly lol?
http://www.zzperformance.com/products_img/1015_4.jpg
In this picture it shows what you are supposed to remove to get rid of the stock regulator. then it says put the fuel diverter back in so is the check valve the fuel diverter? I'm thinking if I can figure out why it isn't holding pressure I can drive my car again
http://www.zzperformance.com/products_img/1015_4.jpg
In this picture it shows what you are supposed to remove to get rid of the stock regulator. then it says put the fuel diverter back in so is the check valve the fuel diverter? I'm thinking if I can figure out why it isn't holding pressure I can drive my car again
#769
2007 Chevy Ss Turbocharger Kit Install Removing Schrader Valve Photo 9
I wish I would have seen this it looks like a good system.
I wish I would have seen this it looks like a good system.
#770
Senior Member
It sounds fuel related. somethings going on back there in that canister or with the brfps thing. The check valve prevents fuel from backflowing into the pump and into the tank. So it should hold pressure when the cars off. I wish someone with more fuel systems knowledge would chime in here. Have you conversed with zzp about your issues? I can feel you frustration, ive been in the same boat.
Last edited by 07cobaltguy; 08-21-2011 at 09:36 AM.
#774
ugh i knew it was a stupid wire! I had a friend come over and look at it he has an ss/tc and we messed with it for a little bit and i started it and we jiggled wires around until we found out what was making it stall. it ended up being in the fuse box I didn't tighten it down enough when I did the motor build. It's funny it took this long to have problems but at least I found it! I no longer have any check engine lights and can now roast the tires all the way through third gear lol. I need to adjust my coilovers a little higher tho my right front tire ate the freakin fender liner haha. Still don't know if my fuel is supposed to go to zero with the key on but it seems to be running fine