B16/mpfi swap runs rich and wont pass emissions
Thread Starter
Honda-Tech Member
iTrader: (1)
Joined: Feb 2002
Posts: 1,737
Likes: 5
From: Austin, TX
I just recently did a b16 and mpfi swap on a 91 std modifying the stock harness and used an 88 integra injector resistor box
when i try to start it in the mornings is has to crank over a bit b4 it starts but it runs just fine (mebe a lil sluggish top end from being too rich) and restarts just fine after i turn it off. I get no CELs but my exhaust is covered in black soot all the time.
I think it might only be my number 1 and 3 cylinders really b/c one day i drove the car from the front of my house to the garage to check the spark plugs and the #1 and #3 plugs were covered in fuel but the others were fine. its new plugs and they are gapped correctly. Timing is set dead on. The injectors should be fine too they were previously on my other hatch b4 I went turbo.
any one have any ideas?
when i try to start it in the mornings is has to crank over a bit b4 it starts but it runs just fine (mebe a lil sluggish top end from being too rich) and restarts just fine after i turn it off. I get no CELs but my exhaust is covered in black soot all the time.
I think it might only be my number 1 and 3 cylinders really b/c one day i drove the car from the front of my house to the garage to check the spark plugs and the #1 and #3 plugs were covered in fuel but the others were fine. its new plugs and they are gapped correctly. Timing is set dead on. The injectors should be fine too they were previously on my other hatch b4 I went turbo.
any one have any ideas?
Thread Starter
Honda-Tech Member
iTrader: (1)
Joined: Feb 2002
Posts: 1,737
Likes: 5
From: Austin, TX
no i have 2 o2's where the primaries merge on my greddy header.. but come o think of it does it matter which wire goes to which O2 sensor?
one goes too 1&3 the other goes to where 2&4 connect. mebe thats it?
one goes too 1&3 the other goes to where 2&4 connect. mebe thats it?
Yeah I think it matters. It wouldn't hurt to swap them around....?
It can't be a coincidence that #1 & #3 were drenched in fuel and the others weren't
It can't be a coincidence that #1 & #3 were drenched in fuel and the others weren't
Thread
Thread Starter
Forum
Replies
Last Post
SLIPSTICK TIPPIN
Honda CRX / EF Civic (1988 - 1991)
10
Nov 6, 2005 09:21 PM
red civic standard
Honda CRX / EF Civic (1988 - 1991)
4
Jul 16, 2002 04:40 PM




