missing when comming on boost

[dickytim]

Has anyone ever had a problem with the engine missing for a second just before it comes on boost when you nail it ?

This problem has just started occuring yesterday afternoon. Any one got any ideas ?

Any help would be very much appreciated.

Cheers Richard :)

[Spirit]

Have had it before and then stopped, now not had it for a couple of months.

Some suggestions could be:

coil pack(s)
spark plug(s)
fuel pump

I would monitor it for now, try an ECU reset also, and see if it disappears

[Brind]

Could have an air leak somewhere?

[Spirit]

Could it also be a bit of crap in the system and a good old blast may clear it out ?

[zentac]

Has anyone ever had a problem with the engine missing for a second just before it comes on boost when you nail it ?

This problem has just started occuring yesterday afternoon. Any one got any ideas ?

Any help would be very much appreciated.

Cheers Richard :)

Sounds like fuel cut to me, I was getting it all weekend spent ages playing with the FCD and boost controller to get rid of it.

[Spirit]

Could be but if he has similar symptons as me it was not doing it at full boost/revs - mine happened at speeds as low as 30 when you just started to floor it - i.e. turbo's just started to spool up. Any more info dickytim as too when it happens ?

[zentac]

Thats exactly what fuel cut does. I was getting it if I slowed down to 20mph then booted it in 5th gear, when the boost came on I hit fuel cut.

[-LegnumVR4-]

Yeah boost cut would come on early as u have put a large load on the engine.

I would have a look at the spark plugs as a starting point. Maybe ring ur Mitzy dealer and ask them if they have heard of the problem before? Most likely they have.

Rhys

[dickytim]

I have been told it seems like a TPS (throttle possition sensor) problem, to test this theory I went all off or all on, on the way to work and what do you know no miss.

Will have it confirmed when I take it into road, race and rally today.

Cheers for the suggestions guys.