Installed agp return line now code p1187 and car stumbles???

[95neonman]

Just installed an agp return line and now my car gets code 1187 EOT sensor ckt. low voltage. The car also stumbles alot now. I have the base pressure at 40psi with no vacuum/ boost source hooked to the regulator. Anyone have any ideas? Thanks.

[onequickr/t]

Quote: Originally Posted by 95neonman

Just installed an agp return line and now my car gets code 1187 EOT sensor ckt. low voltage. The car also stumbles alot now. I have the base pressure at 40psi with no vacuum/ boost source hooked to the regulator. Anyone have any ideas? Thanks.

up the pressure to 58psi,and add your vac/bst source

[95neonman]

Quote: Originally Posted by onequickr/t

up the pressure to 58psi,and add your vac/bst source

Yeah, im gonna add the vac/bst source, i have it set at 40psi cause thats what the base maps from agp had for a base tune. I have a DTEC and rc 750's with my 50trim.

[Spoolin spec v]

Depends where you are gonna connect the vac. source from the FPR at.

If its at the manifold, it will go up and down depending on boost and Vacume.

IF you do it before the IM, it will only go up based on boost.

[bermbuster49]

i thought you wanted a boost only source on the FPR?

[D-ROK]

How are your afr's?

[95neonman]

My a/f's are fine at idle and cruzing. If i go over 1/4 throttle accelerating it will go lean and stumble. Should i try uping the fuel pressure? Also, Should i keep the regulator static, add just a boost source or a boost/vac source. Thanks.

[bpsrt4]

Quote: Originally Posted by 95neonman

My a/f's are fine at idle and cruzing. If i go over 1/4 throttle accelerating it will go lean and stumble. Should i try uping the fuel pressure? Also, Should i keep the regulator static, add just a boost source or a boost/vac source. Thanks.

What are you running for injectors? Your fuel pressure may be too low not allowing the injectors to spray properly

[DRASTIC.]

AGP's setup stumbles period around 25-2800rpms

get used to it, its normal.

set FP to about 40-43 for a 1:1 setup, or run a static of around 54psi.

[TurboSrt_4_Jeramey]

Raise your Fuel Pressue. 750's are rated at 43-44 and dont need to be any lower, that will cause them to drip more then spray so keep them at 44 or above. I have mine set at 50psi with 750's but that doesnt mean yours need to be that high. If you hook up the boost source make sure you get a boost only source with NO vaccume. I tapped mine into my MBC.

Also did you run your return line to the tank or the canister? I get a little stumble but only when I shift gears, if I am accelerating its fine.

[DRASTIC.]

Quote: Originally Posted by TurboSrt_4_Jeramey

Raise your Fuel Pressue. 750's are rated at 43-44 and dont need to be any lower, that will cause them to drip more then spray so keep them at 44 or above.

theyre rated at 43.5
just because thats their rating doesnt mean you cant go slightly lower.

anything belowe 38-40 and youre asking for trouble.

[bpsrt4]

I have mine set @ 44 or so, and with a little time playing with my dtec, I have pretty much gotten rid of it...it still does it sometimes under very light load however

[95neonman]

Its the agp return line so its returned to the tanks fill neck. I have the line for the regulator t'd into my wastegate line so thats boost only correct? im gonna try to raise the pressure to around 45psi tomorrow and go from there.

[bsbob]

i run my reg on the stock RED line. upp to reg at 43ish and no problems. i run the mopar 682 inj.with NO stumble. BSBOB 346 hp 347 tq.

[Ben@AGP]

Quote: Originally Posted by DRASTIC.

AGP's setup stumbles period around 25-2800rpms

get used to it, its normal.

set FP to about 40-43 for a 1:1 setup, or run a static of around 54psi.

No it doesn't and it's not normal.

to the OP, first of all, you need to run it at 1:1 boost only source if you're using any of our maps. Second, try turning the pressure up a hair and you will get rid of that stumble.