MPFI Code 4

Thread Tools
 
Search this Thread
 
Old Dec 18, 2011 | 10:57 AM
  #1  
run for cover's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Jul 2006
Posts: 198
Likes: 0
Default MPFI Code 4

Ok.

I have done a lot of research and troubleshooting and now I am at a loss.

Car would not start, purchased a new distributor and now it cranks but CODE 4, cant rev past 3k.

On one test, the car did start fine and allowed me to go past 3 k but once I turned the car off it went back to having code 4.
I have no idea what to do. Triple checked my wires. Tested continuity.

The only thing I can think of is a bad ecu or the pins are loose and I will need to go to a junkyard to cut the B ecu harness and attach that to my current harness.

Any other suggestions?

Also was considering the ignition timing being off but would that cause a code 4?

thanks
Reply
Old Dec 18, 2011 | 01:02 PM
  #2  
OneBadTurboCRV's Avatar
DO IT ON ALL FOURS
 
Joined: Sep 2007
Posts: 7,632
Likes: 15
From: IN Your Mind
Default Re: MPFI Code 4

You haven't given us anything to really go off of...

What OBD?
What ECU?
What Distributor?
What Engine?
Was the vehicle originally MPFI or is this a conversion?

Blah blah blah... To help you we need more information.

Also, cranking does not equal starting/running.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Torothebull
Honda CRX / EF Civic (1988 - 1991)
2
Jun 3, 2014 07:28 PM
monster d
Honda CRX / EF Civic (1988 - 1991)
1
Jun 12, 2013 10:20 PM
cornfed
Drag Racing
16
Jan 27, 2012 11:10 AM
cornfed
Engine Management and Tuning
6
Jan 27, 2012 02:49 AM
b16a1eg6
Honda CRX / EF Civic (1988 - 1991)
6
Jan 17, 2007 03:32 PM




All times are GMT -8. The time now is 12:59 AM.