skip myles

ok have checked everything twice vacum timing tps iac all is set but when i come home and crank it runs about 900 to 950 after maybe a 2 to 3 min it starts climbing runs from1300to 1500 doesnt go down till i shut car off then recrank it idles at 650 whats left to check

stoydido

what year? unhook TPS to see if it makes a difference. ecm should set a default setting, if I read the book right.

skip myles

will try that its unbelievable one min it runs great next its all over the scale