Smog issues

jcun360

New Member
Hey guys...I'm new to the forum but not new to the honda game... So i took my car up to the smog shop today to test it. It failed CO2 HC and CO in both 15 and 25 mph. my car is a 94 integra gsr w/ a 98 obd2 motor in it, ran as obd1. He said it was running rich. The car ran with a comptech intake, stock LS headers w/02, brand new cat, but its running a p28 chipped ECU. I also think the ECU has been chipped for no 02 or knock sensor CEL because when i had gotten the car it came with a set of greddy headers and a test pipe with no 02 on it and the CEL didnt throw any code for it. My smog guy also doesnt care what i have on the car thats why he tested it. the numbers are...CO2 14.5, 14.3 HC Max 90, 56 measured at 167, 103 CO Max .54, .53 Measured at .77, 1.20 The NOx was fine Max 711, 754 measured 257, 269.......any help would be greatly appreciated. Thanks
 

red98teg

Keep on Truckin
why if its programmed for obd2 would you test obd1? that might be an issue... if he doesnt care...find another dc2 who will pass, and use his numbers and your info and TIP the smog guy a lil on the side...thats what i would do...
 

jcun360

New Member
LOL i would but i dont think he would do that....its just running rich....imma try to find a stock ecu n try that first.
 

jcun360

New Member
Okay so i got a stock p72, new denso 02, new NGK spark plugs, cleaned out my map sensor and air filter and got almost the same results. My smog guy just did a manual pretest and compared the numbers and said they were about the same if not worse..... I only get a CEL after i've driven the car for a little then it turns on. Other than that it doesnt turn on off a start or a small drive. i've also havent had a chance to test the CEL code either. Anyways i was thinking about trying my old 2 cat method like i did with my JDM ls i had in my hatch. I looked at those numbers and the HC, CO2 and CO were very low. Do u think this will work out if i add another brand new OBD1 cat where the resenator is?
 

yourslow

New Member
i would try an oem cat and what kind of gas are you running and how hot of a plug did you put into it
 

jcun360

New Member
got the obd1 universal cat. using 91 cuz its a gsr. and the plugs are OE replacement plugs.
 


jcun360

New Member
car is obd1 and yea its ao obd2 motor. i'm only running one brand new denso 02 and its on LS headers
 

Samurai_Blue

Yolo Whippin'
so you still havent gotten the beast smogged yet james? its probably has something to do witht he obd2 motor with the obd1 ecu dude...
 
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