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Vladgmru
Vladgmru, Automotive Electrician
Category: Chevy
Satisfied Customers: 2668
Experience:  I've been working with American made cars since 1992.
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in my 88 blazer the fuel injectors wont spray it is a throttle

Customer Question

in my 88 blazer the fuel injectors won't spray it is a throttle body system. i know tht it is getting fuel to the throttle body nd up to the injectors but they won't then spry what could cause this
Submitted: 7 years ago.
Category: Chevy
Expert:  Vladgmru replied 7 years ago.
Hello Soter 331!
Tanks for choosing JustAnswer.
My name is Vladimir.
If you do not get spark, you injectors won't be actuated .
If the Engine Control Module does not see reference pulses from the distributor, it won't provide ground pulses to the injectors.
Check if you get a spark from the coil, check if you get +12V on the Red and White wires at the injector connectors with the key ON.
Let me know about your findings.
Vladgmru and 2 other Chevy Specialists are ready to help you
Customer: replied 7 years ago.
i just tried checking the wires i had the key turned on and i got no reading at all from the red nd white wires. whats the next step?
Expert:  Vladgmru replied 7 years ago.
If you do not get power on the Red and White wires with the ignition key in the RUN position, then check your INJ A 10A FUSE and make sure you get power to this fuse with the Key On.
Customer: replied 7 years ago.
where is tht fuse located i checked under the dash in that panel and i don't see tht fuse
Expert:  Vladgmru replied 7 years ago.
Yes, the fuse should be located in the fuse panel, under the dash.
It could also be labeled as a ECM I 10A FUSE. If you get power to this fuse and the fuse is not blown, then you should check for wires integrity between the fuse block and the injector connectors.
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Vladgmru and 2 other Chevy Specialists are ready to help you
Customer: replied 7 years ago.
tht fuse was blown so i will try and replace it
Expert:  Vladgmru replied 7 years ago.
Ok, use the same amperage fuse.
Let me know how it turns out.
It is too late here (2:15 AM) and I am going to sleep.
I will be on line in 8-9 hours.
Vlad.
Customer: replied 7 years ago.
it turned out to be the fuse thanks a lot
Expert:  Vladgmru replied 7 years ago.
You are welcome!
Thank you for the second "accept"
I thought that your problem would be more complicated and we would need to dig deeper towards the ignition control system or ECM.
I am glad it turned out to be a simple fuse failure.
Good luck !
Vlad.