1988 Honda Civic sedan
Thread Starter
Honda-Tech Member
Joined: Dec 2018
Posts: 3
Likes: 0
1988 Honda Civic sedan
I recently had my civic dx swapped to MPFI, I am having some issues and the mechanic who did the swap is no where to be found. I noticed that he did not use a restrictor box And he told me to keep the PM5 ECU. The car is currently smoking greyish white and smells like raw fuel. It starts fine but after a few minutes it stalls unless I keep my foot on the gas peddle at that point the gas peddle kind cuts off and it start to back fire or stalls as if it’s flooding . If I try to move the car it runs very limp and stalls. I tried using a PM6 and the car got even worst so I put back the PM5 and suggestion on what you guys think it might be please help !!!
Re: 1988 Honda Civic sedan
- Are you throwing any CEL's? If so, what are they?
- You need a PM6 ECU - the PM5 will not work for MPFI.
- Did the mechanic swap the DPFI distributor for an MPFI distributor?
- Check the wiring at the TPS - were the wires switched like they should have been?
- Unplug one of the injectors from the wiring harness and use a multi-meter to check the resistance on the injector. If the injector's resistance measures about 12 ohm, the mechanic installed saturated injectors - no resistor box needed. If the injector's resistance measures about 2-3 ohm, you are using peak & hold injectors and will need a resistor box.
Honda-Tech Member
Joined: Aug 2010
Posts: 225
Likes: 1
Re: 1988 Honda Civic sedan
you can eliminate the resistor box if you literally cut the plug and twist all the wires together and solder/head shrink it and change to obd1 injectors and plugs , also Monotech on ebay sells a fantastic tucked dpfi to mpfi conversion harness for like $200
Thread
Thread Starter
Forum
Replies
Last Post
jo7man4
Honda CRX / EF Civic (1988 - 1991)
15
Apr 28, 2007 09:53 AM
idontcare
Honda CRX / EF Civic (1988 - 1991)
20
Dec 7, 2003 12:53 PM