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Rb20det noticing some flat spots in rev range

SeanR32GtSt
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SeanR32GtSt Community Regular

SeanR32GtSt

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So occasionally when going through the gears at almost full throttle I will notice a little flat spot in the rev range that comes and goes. I’ve replaced the coil pack loom and spark plugs. Last should be the packs themselves. What’s a good option? Splitfire or yellow jackets or something else?

SeanR32GtSt Community Regular

SeanR32GtSt

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1 hour ago, GTSBoy said:

Also consider fuel pump might be going soft, AFM might be unhappy in some way (dirty, whatever), injector(s) might be a little sticky.  All of these things can be a bit intermittent too, like coils.

I also have changed the fuel filter recently as well. I’ll start with coils next and if not that then I’ll look at a slight fuel pump upgrade. 

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