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2G 2g p0170 code and temp gauge rising

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Boosted2gdsm

Probationary Member
22
0
Mar 27, 2016
Levittown, Pennsylvania
Hello this is the first time posting on here, so please excuse any "noobish" questions.

I'm having some problems and hoping someone could help out.

I have a 99 eclipse gst convertible, I'm currently having a code p0170 which is bank 1 fuel trim.
Well this code came on after I installed my after marketfuel pressure regulator (I'm gussing) because after installing the pressure regulator I noticed that my timing belt had been ripped off half way ( thank god it didn't snap) after I got the timing belt replaced along with belt , and everything that needed to be replaced , I noticed my check engine light came on after 40 miles of driving . Now I changed the upper oxygen sensorbut the code still came back on after resetting it.
My vacuum is good. When I'm at boost 15 psi it stays 15 psi , it doesn't creep or loose any boost.

MODS:
:255hp walbro pump , not yet rewired
:20g bastered turbo ( 20g compressor in 16g housing)
:full big front mount intercooler
:3 inch maf with Maft
:450 cc injectors
:after market fuel pressure regulator
:maft is blowthrough not recirc , no filter on turbo.
:boost gauge

I do not have a tunner nor a air to fuel gauge as of now.

Also is it normal for my fuel pressure regulator to drop to like 33 psi after I set the psi to 43 with the vacuum hoseoff and blocked ?

Thank you
 
In short and long term fuel trims you want to see under double digits. -10 or +10 but in cases it is normal to see just a hair over or under those

SO my 02 1 and 2 read between 0.100 to 0.800 ,
And
Fuel trim , is 0.08 and 0.08 on both.
Sometime drops into negative
 
Is this on your old regulator?

NO this is the one I have now, the after market fpr .
I never check the stock one because I never had any codes to even think about it.
Why are those codes normal ? I took pics of my scanner that's why I asked you if you knew how to post pics.
 
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