Corolla stumbles when cold

[Shawner]

Have a '90 fuel injected Corolla, stumbles badly when it's cold.

Back to normal once it's up to operating temperature.

Where should I start?

Thanks

[mazdab2600]

cold start injector??
adds more fuel for cold air
close to a choke restrcting air (adding more fuel)
http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/16/a9/12/0900823d8016a912.jsp

[Shawner]

Thanks for the link.

I gave it a try and no dice (resistance is where it should be). Replaced teh plugs, going to do wires/dist. cap in the next couple days to see if that helps.

Any other ideas?

[jeepzit]

Have a '90 fuel injected Corolla, stumbles badly when it's cold.

Back to normal once it's up to operating temperature.

Where should I start?

Thanks

Try a litre of methyl Hydrate to your gas or clewan youe injectors