Odd Idle & Fuelling

[nicr4wks]

Hi Guys,

My r33 has developed a strange idle issue tonight and so far it's got everyone I've spoken to stumped..

When sitting stationary, depress the clutch and put the car in to any gear, while the clutch is still depressed, the revs jump up to 2000. Put the car back to neutral and the revs drop back to a normal idle. While driving, putting the car to neutral the revs stay at 2k until the car comes to a complete stop, then it drops back to a normal idle.

Also going through second at WOT, then changing to third and putting the foot flat, basically as soon as the clutch engages there is a hesitation that feels similar to surge, how ever there is over half a tank of fuel. After the 'surge' to car goes back to running fine until the next gear change (third > fourth) where it does it again. The car has a Bosch 040 fuel pump and a new fuel filter both fitted < 10000km

Both of these issues developed tonight around the same time, anyone have ideas of what I can check?

[89CAL]

Have you changed/modified anything in the car lately?

Sounds pretty strange, I know mine sometimes idles high when I'm moving until I stop then it falls back down to normal idle. But i think that is normal, mine is only sitting at about 1500rpm when I do this, usually being lazy and coasting to traffic lights in neutral

[nicr4wks]

Turned out to be one of the TPS connectors was not fully clipped on, problem solved!