1987 g20 chevy van aint getting no power to the injectors

Asked by Feb 05, 2014 at 03:57 PM about the Chevrolet Chevy Van

Question type: Maintenance & Repair

aint getting no power to the injectors

2 Answers

9,855

Power? They don't have a supply voltage or the ECM is not firing the negative lead. You using a volt meter or injector test lights If there is no power I would dig into the ECM or fuses. If the ECM is not firing the injector, this may sound off topic, but has the ICM ever been changed? On GM TBI units the ICM reads the engine rotation from the pick-up coil in the distributor, converts and sends the signal to the ECM. Once the ECM sees 400 ish rpm it will start to inject fuel. If the ICM or p/u coil have failed you will have no fuel. Try the Ignition Control Module first. Even if this does fix it, you will need it eventually (#4 in my '92 with a spare in the door pocket). Ensure you use the supplied greese between the baseplate and the module or a good di-electric or it will cook (one of the 4). If that doesn't do it test/replace the pick-up coil. You have to pull the distributor to change, and re-time after (fairly easy if you follow my steps if you need them). Good luck.

3 out of 3 people think this is helpful.
19,165

Unplug the injector Use a test light and see if it is not getting power or no ground to the injector wiring plug in.

Your Answer

Add photo

Related Questions

Search Chevrolet Chevy Van Questions

Chevrolet Chevy Van Experts

#1 John Saffrahn
John Saffrahn
Reputation 330
#2 COMETGUY61
COMETGUY61
Reputation 210
#3 1977g10shorty
1977g10shorty
Reputation 200
View All

Related Models For Sale

Used Chevrolet Express Cargo
59 Great Deals out of 13,512 listings starting at $2,895
Used Chevrolet Express
48 Great Deals out of 5,489 listings starting at $1,200
Used Chevrolet Astro Cargo Van
145 listings starting at $4,995
Used GMC Savana
6 Great Deals out of 1,510 listings starting at $1,895
Used Chevrolet Astro
232 listings starting at $1,500
Used Dodge Ram Van
133 listings starting at $5,900
Used Ford E-Series Cargo
88 Great Deals out of 3,080 listings starting at $1,495
Used Ford E-Series Wagon
35 Great Deals out of 1,524 listings starting at $1,500
Used GMC Vandura
15 listings
Used Chevrolet C/K 1500
912 listings starting at $2,500
Used GMC Savana Cargo
18 Great Deals out of 4,605 listings starting at $2,295
Used Ford E-350
221 listings starting at $3,500
Used Chevrolet Tahoe
567 Great Deals out of 27,191 listings starting at $999
Used Chevrolet Silverado 1500
1,739 Great Deals out of 166,788 listings starting at $1,800