fuel problems

[93redcb7]

so i have a h22 chipped and tuned, s1 cams

so as cruise the afr will start at around 15(where it is supposed to be) then just get richer and richer all the way down to 10(maybe even richer my afr gauge only goes to 10). but when I press the throttle over 1/2 way or so my afr goes to 13.5 where it is supposed to be and wont go richer like when cruising. and it seems like im getting popping through the exhaust.

[93redcb7]

so i have a h22 chipped and tuned, s1 cams

so as cruise the afr will start at around 15(where it is supposed to be) then just get richer and richer all the way down to 10(maybe even richer my afr gauge only goes to 10). but when I press the throttle over 1/2 way or so my afr goes to 13.5 where it is supposed to be and wont go richer like when cruising. and it seems like im getting popping through the exhaust.

also because its running so rich at idle it starts to bog down and try to die

[esskater892]

I take it there are no codes? Could it be in the programing when they tuned it? Mistakes to happen. Did it do this right after the tune or a while after the tune? hows your map sensor?

[hotrodj]

Sounds like the part-throttle area of the map needs work.

[93redcb7]

its not the tuning, im tuning it myself and its been fine for like several months, i even tried re-programming it on there
and no codes, how do you tell if your map sensor is good?

[93redcb7]

its not my map sensor, because while data logging it moves around on my map just fine, but while holding in one spot it just gets richer and richer, how do you test fuel pressure regulator/injector resistor box?

[93redcb7]

bump
anyone?

[93redcb7]

got a code 43 today, im guessing its o2 sensor, so im going to tie my wideband into ecu 1v mode and see if it fixes.

if not then i should check
fuel filter
fuel pressure regulator
wires?
not sure what else i doubt its the pump cause i dont get any cutting in and out or anything.

[93redcb7]

so hooking up the wide band made it not seem to run SO rich but still isnt running right. And since i have cleared the ECU i havent gotten the code again yet. what else should i test?

[93redcb7]

Could a bad egr throw this code also? Because at idle there is no vacuum on it. And I'm pretty sure there is supposed to be

[wildBill83]

You do know you can't judge the AFR while in limp mode right? If you are throwing codes your AFR is not going to be correct, just close enough to run and generally rich.

[93redcb7]

You do know you can't judge the AFR while in limp mode right? If you are throwing codes your AFR is not going to be correct, just close enough to run and generally rich.

i cleared the ecu and the CEL hasnt come back but its still running like this. and my open loop(the 1/2-WOT) runs just as it should right around 13.5-13.
so really im looking for a problem that would change just the cruising AFR's, not something consistent through-out the whole map.

[andrew22888]

What brand of 02 sensor did you use?

[93redcb7]

What brand of 02 sensor did you use?

NTK, but i also tired wiring my wideband into it on 1v mode and it still didnt run right.

[andrew22888]

Has it been running like this since the h22 swap. If it has what injectors are you using and what resistor box?