I recently had a no start in this vehicle. here's what been done Lots of parts some were bad some were questionable at times the car would let you pull codes first thing in the morning only once then you couldn't access codes again till car sat for awhile even had a mechanic try hooking up his snap on scan and he couldn't connect to the computer.
1) ignition module( last time three years ago this was problem) 2) cap & rotor 3) pick up coil in dist. 4) spark plugs (first set fouled out) 5) relay module on rad. ( fan and fuel pump ran constant) 6) fuel filter (fuel pressure 30 psi when running 40 psi on acc.) 7) coolant temp switch (questionable ) 8) act switch ( burnt and carbon fouled) 9) oil sending unit (leaking) 10) maf sensor ( seemed reasonable 149,000 mile on old one) 11) tps ( open no res. between post when off car) 12) Iac motor ( frozen cone and shaft even tried cleaning ng) 13) eec computer ( last component replaced car started up runs good fan and fuel pump run like there suppose too fuel two sec shuts off fan up to temp. then runs) Car now runs idles high, yes I did mess with idle screw during attempt to get vehicle running when it would idle poorly used a tank of gas just idling in driveway. It seems the computer was shoot from the beginning but now all new parts. why would engine idle faster than it should. Book says eec controls idle. with all new parts where should I look or do next. checked al vacuum lines replaced cracked or bad looking lines so no vac leak egr valve moves removed and cleaned applied vac can hear valve open and close. Cleaned throttle body scan codes are 536 and 538 .- posted
18 years ago