Slow Start

[Isphius]

And weezl, Mine idles up to 1500 rpms at times, but it wont go below 1100. So do you think it could be my fuel? the car runs great when its under boost and just cruising, Its jut when i let it fall below 1k rpms about. And i tested the cold start injector sort of, so i think it works fine, Because when i crank it, I took the 3000 pipe off to see if it worked and it smelled like gas, So im guessing it was squirting gas in.

[mrnickleye]

CSI will only work when the coolant temperature is below 60*, and 56* comes to mind. Also, the "temp / time switch" will heat up and shut off the CSI after a few seconds of cranking to avoid flooding the engine with fuel.

Sounds more like a fuel pressure hold problem. The fuel pump comes on during the starter crank mode, so if the system does not hold residual pressure, it will take a few extra cranking seconds to fully fill the lines and build up enough pressure to give a decent spray pattern.

See in the FAQs section...Cold Start System testing.

[theWeezL]

Well if you already know your HG is blown...its possible your losing compression out 1 or more cylinders and thats will certainly affect your idle. HG replacement is at worst a 2 day job if your going with a Toyota gasket (more than enough with ARP's torqued to 72#) Isp' you need to get that fixed before doing any other diag 'cause it will almost certainly affect your results.

As for the OP, unless your willing to go and buy a fuel pressure gauge, its almost impossible to diag the fuel system. about the only thing you can do is throw parts at it. I wouldnt do that if it was me.