Question: Fuel pressure & Timing

[mytight95]

I am wondering what kind of fuel pressure i should be running with my setup (look at sig).


Also I am getting the following codes


157 Maf sensor voltage too high
158 Maf sensor voltage too high
172 HEGO sensor lean bank one
176 HEGO sensor lean bank two
556 Fuel pump relay primary circuit failure
113 ACT sensor voltage too high


I have an Actron code scanner purchased from Advanced Auto Parts, and at first the thing only give me the codes for the EGR stuff i know what that is though, it repeated it twice and stopped. Then a few seconds later it started spitting out the other codes, i am assuming that this is the history of all codes that have came up since the last time that i have pulled them.


someone anyone tell me what problems this could be and if it is possible that any one these conditions are caused by low fuel pressure etc.




Thanks Jason

 

[mytight95]

TTT c'mon guys

 

[OrangeMustangGt]

whell, ide say get a new mass air, or at least try cleaning it first,also, my car does that fuel punp failure thing also, i cant figure out what that is!

 

[mytight95]

i have a pro-m 75mm almost new, damn sure better not be it

thanks though, anyone else have a suggestion


jason

 

[Labora]

Any more info on this? I was going to order a new ACT. I got all the same codes as you except the mass air stuff..

 

[dstanggt50]

The maf codes may be causing the lean codes?, I would clean it, or better yet, if you still have your stock maf, I would just put it back on to see if the codes go away. I think usually people run around 38-44psi for f/p depending on mods. I run 39psi.

 

[Labora]

The maf codes may be causing the lean codes?, I would clean it, or better yet, if you still have your stock maf, I would just put it back on to see if the codes go away. I think usually people run around 38-44psi for f/p depending on mods. I run 39psi.

Look at the date. I just bumped his thread curious what fixed his problems since he has the same set of codes I do except for the MAF stuff..

 

[mytight95]

man i don't even remember........i have a different intake, set of heads, amongst other things now,,,,


i know since then i have replaced every sensor on the motor.....lol


jason

good luck.

 

[Labora]

i know since then i have replaced every sensor on the motor.....lol

Haha well that was my next step was just to say F'it and start ordering sensors...

 

[mytight95]

i was thinking about this, i think mine wound up being a vacuum leak, i am almost positive.....

jason