hybrider

well the Visual part of the test went fine, welp minus the p28 ECU i was running (couldnt find my friend to get my p72,damn't )

Comprehensive Visual Inspection: TAMPERED (ecu)
Functional Check: PASS
Emissions Test: GROSS POLLUTER :\

now i failed the emission test on high HC and CO numbers, take a look...

Idle Emission Results

HC #'s

Max- 100
GP-250
MEAS 443

CO #'s

MAX- 1.00
GP- 2.50
MEAS- 1.26 (idle-1036rpm & 1.78 MEAS 2500rpm-2588rpm)

[MEAS = amount measured] --- [GP = Gross polluter limits] --- [MAX = maximum allowable emissions]

now what could cause these high HC and CO emissions? can anyone analyze for me? i guess its time for a diagnosis, any smog station will help me correct?

Thanks In advance ppl.

rodrez.

Was it a reprogrammed ECU?

1999all_motoR_teg

If it's a chipped ECU that's your problem right there. They cause you to run richer then the stock. Get a stock ECU, Put in the highest available octane in your area, retard your timing, drive around on the highway for about 15-30 minutes then go take the test and you should be fine.

monicle

introduce the ref to a couple of your dead president friends. just kidding good luck though.

degooser

wow i just went through the same **** but my readings were totally off....

my visual was fine...

emissions were crap face...gona have a friend check it out...

good luck...id get a usdm p72 and work from there...

chipped p28 probably throwing a lot of fuel in there...

hybrider

yes it was a "mugen" chipped p28, can that alone cause those numbers?

thanks ppl

rodrez.

YES. It will fail everytime with that computer. Just swap it out for stock ECU and you should see MUCH better numbers on the smog dyno.

1999all_motoR_teg

Yah Rodrez is correct the mugen and Skunk2 programs are the worst for running rich I have the Skunk2 and in order for me to pass I had to go to my stock ECU and retard the timing

hybrider

interesting, thanks all...