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first 10 minutes stall/stumble 200 1989

89 auto wagon with 340k and egr.

stumbles and stalls if any gas put to it when cold. by cold i mean overnight and maybe 60 above when started. pedal needs to be put to floor to coax it to get going and then "wants to stall thing" happens first few stoplights/signs. once past that stage it will run on highway okay for 12 mile commute and will start without problems after 6 hours of sitting. so a cold start/idle issue only i assume.

went through the obd menus for # 2 and # 6 socket. nothing. obd firing of injectors and iac came out okay.

down to hmm. have yet to test coolant sensor at ecu.

any thoughts to make hmm change to ah?

tanx
gc






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