Engine help

[Machzzzz1]

Hi there.

Just bought a 1999 Grand Prix with about 260000km on it and the car is in perfect condition (body wise).

However im having a few weird issues which im hoping you guys can help me resolve.

I was in the car and I started it cold. It started in like half a flip. However once it warmed up the motor would have to crank over maybe 4 times before it fired.

The idle also seems a little unsure of itself. It goes up and down, and once i noticed that it was idling at around 2200 rpm and would not come down until I restarted the car. However sometimes it sits at around 750 and idles fine. (weird.)

Any help.
THanks.
Martin.

[blueguy]

Sounds like your TPS is starting to crap out...any SES lights?

[TheOtherNick]

Fuel pressure regulator for the starting issue. When could the engine needs the extra fuel that it is leaking, but when hot it wants it lean and the fpr is leaking fuel into the engine.