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kenster

RX8 delayed/intermittent response when accelerating

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I'm having an issue lately whereby when I accelerate in the 8 the response is delayed and intermittent.

First it feels like the power just isn't there and it climbs the revs slower than usual, then it can kick in all of a sudden and then drop off again.

I'm wondering if it could be the ignition system (usual suspect #1) or has anyone other theories or experience?

Running a completely stock set-up in the engine, Mazda coils, magnecore leads, NGK plugs, bought from JP4mance in May 2016, prob done ~30k km since.

Toyo decat mid-pipe is only mod on car.

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Hi mate, yes ignition would be my first guess and would be a good place to start as you have to get some checks in to minimize what it could be. Some simple ways on YouTube for trouble shooting with coils etc so have a look and get started. Yes, I have had something like you before but not  exactly the same and it turned out to be a sticky ssv then another time it turned out to be a solenoid on the blink. We would like to know more such as how it revs through the rev range where is it kicking in and dropping off etc to see can we narrow it down a bit.

Any codes at all?

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If you've gotten 30K KMs out of your sparks you're doing well - try changing them first & coils next. From what I've gathered the Mazda coils seem to last about ~35K Miles/60K KMs give or take before they start to become an issue.

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Specialists normally swap coils, spark plugs and leads and check for a blocked catalytic converter and so can diagnose the problem quickly. Often people say they need a rebuild, when all they need is a good battery, starter, plugs, coils, leads which will start cars with low compression.

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