[svxistentialist]

Huck

This is a hard one to call, particularly without any codes to read.

As it starts OK when warmed up, and runs OK when started, then it might be wise to look for something temperature related.

As a first port of call maybe you could recheck what voltage the TPS is set at. It just might make a little difference to set a bit high, maybe 5.1V?

Other things might be your MAF connections. The voltage going to the ECU is delivered by the square box on top of the maf. When these [mafs] degrade it is often poor connection inside this box that causes bad or intermittent signal. This circuit box may well work OK when warm, but metal shrinkage when cold may be giving "bad" cold voltages from a dodgy connection, and the computer won't fire in the fuel.

You could check this by swapping in a good unit, and see if it fires when cold.

You might also check connections to the slow running jets on the manifold to make sure they are OK.

Joe