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On Full Boost Engine Drops Power & Rough Idle


thebrunks

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  • Member For: 20y 4m 20d
  • Location: Gold Coast

With the CAPA edit I've got the following prob

It's now happened a couple of times since I've flashed the PCM on the 10 PSI map.

When accelerating hard, the car drops power & then seems to overfuel & runs rough, it will clear itself shortly afterwards once I lower the revs down to idle.

It feels like too much fuel, as it take a few seconds to clear it out!

Today though the traction control light stayed on until I shutdown the car.

Any thoughts???

Russ

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With the CAPA edit I've got the following prob

It's now happened a couple of times since I've flashed the PCM on the 10 PSI map.

When accelerating hard, the car drops power & then seems to overfuel & runs rough, it will clear itself shortly afterwards once I lower the revs down to idle.

It feels like too much fuel, as it take a few seconds to clear it out!

Today though the traction control light stayed on until I shutdown the car.

Any thoughts???

Russ

Custom tune?

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  • Member For: 20y 4m 20d
  • Location: Gold Coast

Yeh regapped the plugs to .89mm I may have to go closer, it happens on full tank, half tank, whatever tank!!!

It may still need plugs gapped closer to .8mm, the traction control light was the worry today, but the rest seems like overfuel.

It felt like my Gemini when the fuel pressure was too high & kept the needle open on the carby.

Russ

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  • Moar Powar Babeh
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  • Member For: 19y 2m 7d
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  • Location: Perth

try dropping them down to .74mm Simon from Xtreme told me this becauase my car has started to do the same thing u describe. it used to do it on 10psi with the capa generic tune and now that the boost is up to 16psi it occassionally does it. im running .78mm at the moment and Simon assures me that th extra .04mm wil make a difference..maybe take yours down to .78 and see how you go?

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  • Member For: 20y 4m 20d
  • Location: Gold Coast
brunks sounds like u might have vavle spring issues

Mate could be, does it seem as though the PCM shut's down to protect itself?

The traction control light coming on was a bit strange!

Russ

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