1990 Chevrolet S-10 Repair Question
Topics covered: Fuel pressure, Vacuum leak, Body.
Mileage: 180,000 miles.
Mileage: 180,000 miles.
Asked on September 10, 2012
Engine runs rough only will stay running if you flutter the throttle but runs fine if you spray starting fluid in the throttle body
I have replaced both the injectors, and replaced the dist. cap and rotor,use a noid light to see if injector pulse is present and there is a pulse and it has good fuel pressure have also replaced the fuel pump relay
Asked by aaronmeskerAnswer
Replied on September 10, 2012
what is the actual fuel pressure??
do you have any vacuum leaks?? especially around the throttle body.
Roy
Replied on September 10, 2012
i dont believe it has any vacuum leaks fuel pressure is about 12psi
Replied on September 10, 2012
did i mention it also back fires shoots a good flame too
Replied on September 10, 2012
verify that the wires are going to the correct plug. otherwise it sounds like it is running too lean.
Roy
Replied on September 10, 2012
what would cause it to run too lean besides the ecu. it happened from sitting for like 2 months. at first i was able to start it with starting fluid and drive it without a problem then one night it just stalled when i pulled into my driveway sence then ive been having the problem im having thats why i changed the injectors
Replied on September 10, 2012
12 lbs of fuel pressure sounds low. it should be around 15 lbs.
Roy