1987 944s Cold Start / Performance Chip

[horsman_f3]

I bought a 1987 Porsche 944s last spring. Since I bought it, it will not stay running until its been warmed up. I was told that is because of the chip that is installed in it. Could that be true? Or, the DME is bad? I have been thinking about pulling the chip to see what kind it is and looking at the solder joints of the DME.. Any feedback would be greatly appreciated!

What are a good, safe, and recommended performance chip?

Cheers!

[Rasta Monsta]

I wonder if the prior owner "deleted" the idle air controller. It's one of those "performance modifications."

[horsman_f3]

I will go look and see if I can see it..

[ckelly78z]

I have a Wilks race chip in my 85.5, and it starts and runs well in below freezing temps, however the PS pump howls a small bit when cold.

[guru944]

horsman F3:

Recommend replacing Oxygen sensor O2 and adding a Fuel Treatment (Chevron Techtron).
Remember your need 93 Octane or it will never run properly. Later...

[horsman_f3]

I run 93 Non oxy.. When its warmed up it runs like a dream. Or is it 91?? I know whatever it says in my gas lid, its what I get at the pump.

[guru944]

Why no oxygen sensor? The DME is adaptive and needs it. Suspect defective sensor...later...

[horsman_f3]

If you referring to my 93 Non Oxy comment, Im referring to the fuel I run in it. Its 93 Octane Non-Oxygenated gas.