OldSchoolSwap

I have a PR3 ecu preOBD on a B16.
I am now getting a code 2.
Checked the PR3 troubleshooting chart but no code 2 exists. What could be triggering this "unknown" code?

Turbogixxer

You are probably reading it wrong

tinkerbell

code 20 = ELD = electrical load detector???

might mean your alternator wiring is messed up or similar...

primeredbeast

code 1 and code 2 i belive are the primary and secondary o2's do you have 2 o2 sensors hooked up???

OldSchoolSwap

No, only one is hooked up and jumped to both ecu pins. Its been running just fine for almost two years. Till now that i just installed the VAFC.

It blinks twice fast and then pauses. Then blinks twice again and then pauses. They are short blinks, not long.

OldSchoolSwap

It is also running lean according to the rich/lean gauge. Even at full throttle, only the first RED LED turns on my R/L gauge.

It richens up only at idle when ever it wants but goes back to lean when driving.

EP3_05

Code 2 is the secondary O2 sensor. I would either wire them correctly or convert to OBD1 and run one O2 sensor or have your PR3 chipped to run one sensor. The PR3 needs inputs from both pairs of cylinders to run "correctly".

OldSchoolSwap

what you said makes perfect sence, however. why did this code just come up after installing the VAFC? (remember, iv'e been running the motor for two years with my current setup, no ecu codes ever popped up)
Could it be due to the the engine running extremely lean the O2 picks up the new engine condition then sends out the code. Possibly the computer's way of saying "hey i'm leaning out".
Remeber it tries to adjust the mixture while at idle and achives a richer mixture but after driving a few minutes it leans out and the code pops up eventually.

Next step is the dyno in a week or two, but i don't want to drive the car like this....

Katman

have you tried resetting the ecu after your VAFC installation?

I'm betting your gettting this odd code because of something not setup or wired in correctly with the VAFC...

OldSchoolSwap

Yes i did, i also double checked the wiring according to the install sheet and everything is correct. The VAFCII also operates just fine and picks up all the sensors, rpm and psi.

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OldSchoolSwap &raquo;</TD></TR><TR><TD CLASS="quote">Yes i did, i also double checked the wiring according to the install sheet and everything is correct. The VAFCII also operates just fine and picks up all the sensors, rpm and psi. </TD></TR></TABLE>

its a VAFC 2 eh? haven't toyed with one of those yet.

Perhaps ver.2 is 'smarter' than the ver.1 and it's lookin for the 2nd 02 sensor. Maybe wire in the 2nd 02 like it should be and see what happens, yea? or convert to OBD1

primeredbeast

try to wire the second 02 up

cherroneballs

try to adjust your settings on vafc and then reset your ecu I ahd codes at first when I installed a afc and then just played with it and got the codes off.

OldSchoolSwap

The VAFC is to complex and i have no idea how to tune it. I did all the install myself but adjusting all the settings is a diffrent story all together.
I'll talk to the dyno shop and see what they say about this.

Any other opinions are appriciated. thanks!