Hos Hosslehoff

im gettin juddering on full boost, sort of like misfiring. doesnt happen whilst driving steady. anyone know the cause?

stonejedi

iTrader: (51)

running to much boost. does it feel like its holding back when the boost comes on fully?

Mrchips

iTrader: (7)

I get this also.

I did think is it DET.

I had mine remapped not to long ago but whether was so hot that couldn't do much , but did say it will run more boost when colder, so think maybe its trying to over boost now.

I'd like to find out as well on this.

Glowplug

iTrader: (8)

To the OP i say, plugs, coil packs and or leads, check/replace and gap plugs to 0.8mm

Mrchips, you should contact your mapper

prodrive.greeny

iTrader: (3)

correct gap is 0.65mm

0.8mm causes misfire

Hos Hosslehoff

its been running fine for years. it has 4 boost settings though an apexi ecu and im running it on the lowest. spark gaps sound more likely as i have recently replaced them

Glowplug

iTrader: (8)

0.65 on 7's is good, 0.8 recommended for 6's in a standard motor