emission problem?

[mikecb7LX92]

hey...i recently just swapped an semi built f22 into my ej1 and took it to e-check last week and it failed...but not as bad i thought it would, the thing is i have a stage 2 bisi cam so what i did was lower the fuel pressure with my regulator down to 35 psi and the NO2 was a lil high, so would lowering the fuel pressure make the engine burn too hot?


(edit): the top is built with the stage 2 cam, bisi springs, 3 way valve job h23 intake manny, and an adjustable FPR.

[Nizmo]

Im going to say yes, because you may cause it to run lean... which we all know can lead to overheating

[mikecb7LX92]

thats what i was thinking...but then again i dont want it running too rich either and have it fail cuz of that...so i think ima just put the stock FPR back on and try taking it again.

[1.sikk]

Check your timing to make sure it is within spec. When was the last time you did a tune up?

[Nizmo]

I would imagine a good tune was in order after the top end build?

[stretch JDM]

have you got a new 02 sensor and a new catt. ? these thing bad will make you fail as well.

[wed3k]

I would imagine a good tune was in order after the top end build?

that and a/f readings...make sure the egr ports are clean because that will ultimately fail a f22.

[1.sikk]

that and a/f readings...make sure the egr ports are clean because that will ultimately fail a f22.

Did all CBs have EGR? I thought only automatics had EGR valves....no?

[stretch JDM]

all f22"s have egr ports man. if its fuel injected.

[mikecb7LX92]

i have a chipped p06 tuned for this setup...the cat is a new universal one and the 02 sensor is the same one that i took out of my cb before i traded it...did a tune up as soon as the motor was swapped....like two weeks ago.
the egr was deleted with the swap aswell...just checked timing and was off by two teeth.

[accordztech]

you deleted your egr and you are wondering why you got NOx numbers...Hopefully you will pass it, its hard for a aftermarket cat to kill nox because they suck, especially with no help from an egr system (cars that DO run egr)

Retard your timming only by a degree or 2. Retard to much then co and hc will go up, unless your in a good limit.

Denatured alcahol may help to.

[mikecb7LX92]

thats what i was gunna do to....put alcohol and retard timing just a bit.

[mikecb7LX92]

i actually just found the report and from what it shows i didnt fail by that much, the reading was 1287.3 and the limit for the ej1 is 1123.0 so im hoping the after i try the alcohol and messing with the timing it should pass

[mikecb7LX92]

update

just got back from e-check and it passed! all it needed was the factory FPR and 2 bottles of 91% rubbing alcohol.

[accordztech]

post your results, im courious.