FPR size differences - 1999 Silverado LM7 vs. 2003 Tahoe
11-07-2016, 05:34 PM
#1
On The Tree
Thread Starter
FPR size differences - 1999 Silverado LM7 vs. 2003 Tahoe Hello all
Long story short - I tried to save a few bucks and swapped a Tahoe fuel rail and FPR from a 2003 5.3L Tahoe onto my 1999 Silverado intake with the Silverado's fuel injectors. My car was running low on power (idles great though) so I hooked up a wideband and it's running lean.
I have access to HPTuners, is there a way I can adjust for the different fuel pressure from the Tahoe FPR?
All I have found so far are the injector flow rates, not the FPR's PSI.
http://www.lt1swap.com/inj_maf.htm
Here's my current setup (Tahoe rail/FPR, 1999 truck injectors):
Silverado Injectors:
I can get part numbers if those pictures don't help.
Any help is appreciated.
Long story short - I tried to save a few bucks and swapped a Tahoe fuel rail and FPR from a 2003 5.3L Tahoe onto my 1999 Silverado intake with the Silverado's fuel injectors. My car was running low on power (idles great though) so I hooked up a wideband and it's running lean.
I have access to HPTuners, is there a way I can adjust for the different fuel pressure from the Tahoe FPR?
All I have found so far are the injector flow rates, not the FPR's PSI.
http://www.lt1swap.com/inj_maf.htm
Here's my current setup (Tahoe rail/FPR, 1999 truck injectors):
Silverado Injectors:
I can get part numbers if those pictures don't help.
Any help is appreciated.
