P0171 and P0174 codes being thrown!
01-30-2016, 02:39 AM
#41
Instructor
Thread Starter
Well I disconnected the bap and the fuel pump still didn't turn on, so I'm guessing the pump is toast. Checked the fuel pump fuse and it's fine...
Last edited by nightster; 01-30-2016 at 02:39 AM.
01-30-2016, 02:21 PM
#42
Melting Slicks
Member Since: Mar 2007
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What about the factory fuel pump relay, fuse, and contacts in the fuse box? I'm guessing you completely bypassed the Racetronix harness, but if not, I'd try that as well.
01-30-2016, 02:32 PM
#43
Instructor
Thread Starter
That's exactly what I tried. I need to check the relay. What do you mean the contacts in the fuse box?
01-30-2016, 03:30 PM
#44
Melting Slicks
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The pins in the fuse box have been known to fail. It's pretty unlikely if the Racetronix harness is bearing the load, but it all needs to be checked.
Time to break out a multimeter and do some basic testing.
Time to break out a multimeter and do some basic testing.
01-30-2016, 05:13 PM
#45
Race Director
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St. Jude Donor '15
Voltage at the connection near the fuel pump?
01-30-2016, 07:07 PM
#46
Instructor
Thread Starter
Looks like I need to buy one, one of the many tools I don't have. I'm rather curious why all of a sudden the fuse popped in the racetronix harness.
Last edited by nightster; 01-30-2016 at 07:08 PM.
02-09-2016, 07:02 PM
#47
Instructor
Thread Starter
I was getting 10v at the fuel pump connector, the battery was low so I think that's why I was only seeing 10v. I pulled my BAP off and will be ordering my stage 1 fuel system soon.
10-20-2016, 10:19 PM
#49
Instructor
Thread Starter
Kind of, I still get them but nowhere near as often. I found that my glass "catch can" was cracked on the bottom and created a vacuum leak. I put a stage 1 fuel system on it along with a wideband. I constantly watch the wideband and the car never really seems to run lean. Only sometimes when I first start the car, Ill put it in drive and let it idle while moving. The idle will stumble and kinda fall on its face and the wideband will read lean. A throttle blip will correct it and the idle will return to normal. I plan on getting the car tuned for the fuel system and if the codes retune I'll continue the search for more vacuum leaks.
Last edited by nightster; 10-20-2016 at 10:21 PM.