Too Lean

SpyderDiablo said:
...I have been told that I am running very lean, both by my ASE instructor and by the dyno owner..
Click to expand...

You need to point your "ASE instructor" to this thread and have him explain as to how he derived at his conclusion.

I am NOT ASE certified and I said from the very beginning that your car was not running lean...

and one of the most reputable tuners on this board just confirmed what I said.

Now.. you need to send your instructor over here so we can smack him about for giving you bad/bogus/incorrect information.

ALSO, I would ask for a refund on the money he is charging you for this "certification"...
 
I already dropped the classes. I didn't feel as if I was learning anything I couldn't pick up from my own hands-on experience. So, from what Lonnie and everyone else has said, there ain't a damn thing wrong with my car. What about only getting the 30 psi at the fuel rails? The thing that made me check the pressure is I was driving to class on the highway, and all of a sudden I lost all power, the rpms were at 300-400. I tried to rev the engine, but nothing happened. I pulled over, stopped, shut it down, and started it back up with no problem, except rpms would fall back to 300-400. then about 5 mins later, everything was back to normal, with no problems since.
 
If you are only getting 30 PSI at the fuel rails then you should
1. check/replace the fuel pressure regulator {cheap and easy}
2. replace the fuel pump {expensive and not an easy job)

I'd take it in the order of cost and ease first, but I haven't seen many IF ANY fuel pressure regulators fail.. usually it's the pump.

I replaced mine at 150,000 mile when it died {how many miles you got}
then I replaced mine again at 300,000 miles rather than waiting for it to "fail and leave me stranded again".

If you decide to replace the pump, dont buy the whole assembly from Autozone or Orielly's.. as they will sell you the entire fuel pump assembly for 329+ dollars..
when you only need "the pump".

I got a 255 LPH walboro pump for 108.00, far cheaper than replacing the entire assembly...

Just FYI.
 
You must log in or register to reply here.
Back
Top