1991 Chevy S-10 Blazer

[scubasteve1968]

I have a 1991 chevy s-10 blazer,it will start but it wont run ...if u change the plugs it will start and run for a few seconds but it will flood itself out due to too much fuel through the injectors...fuel pressure regulator is brand new 2 weeks old ,ecm is brand new cal pak and prom put in yesterday to no avail ...i dont have a check engine light so cant read computer.....dealer has had it for 2 weeks he couldnt fix it ....what do i need to do now....

[Zembonez]

I have a 1991 chevy s-10 blazer,it will start but it wont run ...if u change the plugs it will start and run for a few seconds but it will flood itself out due to too much fuel through the injectors...fuel pressure regulator is brand new 2 weeks old ,ecm is brand new cal pak and prom put in yesterday to no avail ...i dont have a check engine light so cant read computer.....dealer has had it for 2 weeks he couldnt fix it ....what do i need to do now....

Possibly an injector stuck open? If I remember correctly, it only has two in the throttle body right? (assuming it is a TBI motor) I've seen a TBI injector go bad in a mid 90s GM pickup and flood it...

[scubasteve1968]

I have a 1991 chevy s-10 blazer,it will start but it wont run ...if u change the plugs it will start and run for a few seconds but it will flood itself out due to too much fuel through the injectors...fuel pressure regulator is brand new 2 weeks old ,ecm is brand new cal pak and prom put in yesterday to no avail ...i dont have a check engine light so cant read computer.....dealer has had it for 2 weeks he couldnt fix it ....what do i need to do now....

Possibly an injector stuck open? If I remember correctly, it only has two in the throttle body right? (assuming it is a TBI motor) I've seen a TBI injector go bad in a mid 90s GM pickup and flood it...

 

yes it has 2 injectors but both of them are putting out the same amount of fuel too much said the technician at the dealership

[Zembonez]

yes it has 2 injectors but both of them are putting out the same amount of fuel too much said the technician at the dealership

We have some techs that cruise these threads. Hopefully somebody with recent TBI experience will chime in.

 

Good luck figuring it out.

[scubasteve1968]

yes it has 2 injectors but both of them are putting out the same amount of fuel too much said the technician at the dealership

We have some techs that cruise these threads. Hopefully somebody with recent TBI experience will chime in.

 

Good luck figuring it out.

 

 

it is a tbi motor also have a problem with no check engine light at all ...and no power to ecm pigtail diagnostic tool cannot read ...need to know if a relay could possibly be a cause of it