Rell_1218

My car has been giving me issues, since I first purchased it in August 2012. Well, my issue now is that it is surging and shutting off on me, when I'm coming to a stop or when I press the brakes. If it doesnt shut off on me when i press the brakes, it acts like its not getting gas then all of sudden takes off likes something was clogged .I don't know if this problem is fuel related or not, if it is I have changed the pump/strainer three times since October and most recently a month ago. I have changed the injectors three times since December and the fuel filter twice since October. I had the tank cleaned out also. I had a new ECM, icm, and full tune up. I had a vacuum leak in the pipe that connects the egr to the intake but I replaced that. I also smell gas coming from somewhere under the hood and I hear my fuel pump whirling after running for a while. I haven't had the fuel pressure or the injectors checked since installing the last fuel pump in May. I put almost 1k on the car since the last fuel pump change..also the only time my check light comes on is when it's about to die or dies on me

W.E.G.

What tests have you performed on your fuel pressure regulator?

mcrandrz

Not only the fpr. Did you grease the o rings on the injectors before you put them in? And check vacuum while pressing the brakes.


Posted from Thirdgen.org App for Android

mcrandrz

And what code does it throw? I bet its a map code.


Posted from Thirdgen.org App for Android

Rell_1218

I haven't had the codes checked and what kind of test can I perform on my fuel pressure regulator? What are the symptoms for a failing map? No I didn't grease the o ring

mcrandrz

Pull the vacuum to it after a minute of running. Do you see gas? if yes its bad... and. Um. What. You didnt grease the o rings for the injectors?.... ok. Thats definitely a problem. If you dont grease all 12 o rings. One could have ripped during installation and then you have your fuel leak....


Start with the fpr. Pull the vacuum. Check for gas.

If no gas I would be looking at injector o rings. And greased with die electric grease. I've found it works best


Posted from Thirdgen.org App for Android

W.E.G.

fasteddi

iTrader: (2)

The first 2 things I always recommend is:

To put a fuel pressure guage on the car. Check the primed pressure, the running pressure, rev it up and check that, if you can drive with the guage in site its great for really adding a load to the fuel system, then check the leak down of the pressure once you shut the car off.

Next put a vacuum guage on the car and see what its doing. Is it pulling a good vacuum and just going up and down? Or is it just steady and bad? Or steady and good?

Then do the paperclip test and try to pull the code(s) if that is nessasary. Then hopefully with that stuff you can start to really find the issue and correct it.

These are test that are basically free to do. I'm never a person to be a parts changer so I've learned to prove something is wrong before you start replacing parts that are in good condition. You can either ask friends for the fuel pressure guage and vac guage or just hit up a local autozone or place of that nature as they usually rent them out for free as long as you bring it back.

If you ripped a upper o ring then you should know by the fuel spraying out of the rail, If its on the lower then it can leak and also cause a vac leak since there's not much volume flowing and you have a vacuum there.

Its not to complicated to grease them up. Use assembly lube, vasoline, or whatever. I've never had a issue seating new o rings, even when I was younger and didn't add lube to them, because I didn't know better. Now I always do it just because I've learned to do so.

Try to do the ecm paperclip test to see the codes. Could always be a IAC acting funny or you didn't preform a idle relearn on it after disconnecting the batt. The gas smell could very well be the injectors leaking just a hair from a small tear in the O-rings.