Hi all, my 2nd gen mx6 came with a kf 2.0 engine with external igniter and that engine died. I'm in the process of swapping it with a kl2.5 the engines we get there in Trinidad are from japan so i'm guessing its a klze. I got the engine and wiring harness however i am a little confused about the wiring. The jacks are different in addition the old harness has a second ecu that plugs into the harness with 2 black jacks its located behind the main ecu. Is that the transmission ecu or what?
Rewire the signal wire going into the external coil to go into the KL distributor. The distributor has 2 harness connectors on it while your KF likely only had 1. The extra connector on the KL distributor is for the wiring that would go to your KF's external coil. Now the bad news. Your external coil is going to send back a signal to the KF ECU that is different from the KL distributor. The resistance (Ohms) is going to be different and that might cause weak spark, no spark, or other issues. You've got a project on your hands now. Good luck.
Opps, that is why I am not sure where u come, as I assume u r the majority 2.0 which is I4
Here is the link, hope it will help u to finds ur questions. Base on what I have read so far, yes it will be a big project to you and it may end up the same result as my assumption in my first post. Nonetheless, good luck...............
I have the two harnesses - the original kf and the one that came with the kl as well as the main ecu for both engines.so im trying some reverse engineering as well as the diagrams. I found out that its a different tcu that one uses and i can get it for about $80 usd. Tested where all the wires were getting signals from. I wired the main jack pcm power , start sigal etc yesterday which was the 7 wire connector, only a million more to go....... thanks for the links guys ill post my results soon
You aren't stuck if you have a multimeter and a diagram of the DE distributor pinout which is likely the same as the ZE distributor. Gotta do some backprobing during cranking and you'll figure it out eventually. Yes it's going to be time consuming, tedious, and frustrating but you can do it that way. If you can find the start signal wire and hook that up then you have the skills to do the rest. You don't need an ECU pinout you just need to do a hell of a lot of backprobing.
Well for now since I needed to use the car I have pustponed the project. I ended up using my old harness with my old vaf, disty, ecu, external coil, and intake. The vris seems to kick in and the engine runs effortlessly even though I know it could run better with the original setup but I'm OK for now till I get my gearbox overtaking seems to be amazingly quick, I'm afraid of the kl for now.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.