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Discussion Starter · #1 ·
hey guyz i juz drop a kl-de in my mx-3 n when i start the car up its not idle'n right ,sometimes the motor sounds like it misfire or stutter and sometimes it idles fine then the idle will drop lower for a lil bit then come back up...me and my friend went back n check every vacuum lines n sensor and everything seems to be rite...so does anyone know whats wrong ?
 

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The KL57 is from a 94 MX-6, so was right in that car..

Does the car run ok other than the idle?
What else was fitted from the donor car besides engine and ecu?

John
 

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It sounds electrical, rather than fuel..

Check ignition timing, rotor arm, distributor cap, leads and plugs..

I'll presume the engine was running fine before fitting it..


John
 

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Quick question TK2269, the vaf you say you have, did it come with the engine ? is it the ZE vaf ? if so i dont think the KL57 ECU you have is a ZE one, and the ZE vaf does not work with the DE ecu's. Let us know which VAF you have.

Oddy.
 
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