help help please??? - Toyota Nation Forum : Toyota Car and Truck Forums

sulkescelica · 02-09-2009, 09:54 PM

hi all. i am new to this forum and i need some help please ,i have a 91 celica st , the problem that i am having is , when the car is cold drives fine but after 5 to 10 min driving the car start chocking when i push the gas pedal hard but if i keep it slow the car runs fine. what do u guys think? what is the problem? thank you ..

jmuschweck · 02-19-2009, 12:57 PM

Maybe an injector problem? Doesn't sound like induction since it runs fine when its cold? Think about the parts that are temperature affected due to the heat.
Justin

Pineapple · 02-19-2009, 01:30 PM

Most likely bad ignition coil. Had same problem.

concealer404 · 02-19-2009, 02:15 PM

Quote:

Originally Posted by Pineapple

Most likely bad ignition coil. Had same problem.

Either this, plugs, or IAT sensor gone bad.

bpodskalny · 02-20-2009, 10:06 PM

misfire under load is most likely secondary ignition misfire

meaning coil, cap, rotor, wires, plugs

when was the last time you had a tuneup performed?