DESPERATE help needed in passing emissions

Thread Tools
 
Search this Thread
 
Old Dec 14, 2002 | 12:37 PM
  #1  
Aphrodavid's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jan 2002
Posts: 977
Likes: 0
From: Tucson, AZ
Default DESPERATE help needed in passing emissions

heres what i have

90 DX HB
MPFI swap
I/H/E

the MPFI swap used a stock 91 SI ECU, accord resistor box, complete 92 DX intake manifold using non-obd b18a injectors.

so ive failed emissions 5 times so far, btw, i have a gutted cat, but keep reading. the first time i went thru stock. 2nd time was with injector 2 unplugged, 3rd time was a new O2 sensor and a valve job, 4th time was with an HF computer(which failed MISERABLY), 5th time was with a used 91 integra cat. i got the closest to passing with the cat(obviously). heres the latest test with the integra cat.

hydrocarbons loaded-155 standard-220
hydrocarbons idle-217 standard-220
carbon monoxide loaded-3.32 standard-1.20
carbon monoxide idle-0.69 standard-1.20

so as you can see, when loaded, i dumping WAY too much fuel. the guy at emissions is really cool and explained that a new cat would NOT fix that problem and theres some sensor thats telling the ECU to dump too much fuel. i thought maybe my MAP sensor is bad or the FPR(stock) is broke. the car runs PERFECT, runs low 15s here in tucson and i dont throw any codes. one thing it might be is im using the 92 DX FPR and im wondering if that has a higher PSI than a 88-91 FPR. i REALLY need help here, i have 2 weeks to get this fixed and with those results, i cant even qualify for a waiver.

oh and the cap, rotor, wires, and plugs were changed less than 1000 miles ago. im using #5 plugs(hottest you can go for my car)


[Modified by Braveheezy, 3:13 PM 12/14/2002]
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
richard203
Honda CR-V & Element
5
Aug 20, 2016 11:14 AM
hatchet_honda
Honda CRX / EF Civic (1988 - 1991)
11
Nov 17, 2009 09:47 PM
cornflakes
Honda CRX / EF Civic (1988 - 1991)
22
Sep 24, 2007 10:07 AM
kenny7
Honda Civic / Del Sol (1992 - 2000)
5
May 11, 2007 09:13 AM
Aphrodavid
Tech / Misc
2
Dec 14, 2002 08:15 PM




All times are GMT -8. The time now is 08:17 AM.