Need help
04-01-2017, 09:21 PM
#1
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Need help
I have a stock 1989 of of z28 I am trouble with it starting I can start it but runs rough no power I have replaced the coil cap rotor plugs and wires pick up coil I can start it drive it then like no spark sometimes I can shoot starting fluid in and it will start I have good fuel pressure i have checked the injectors I am at a loss
04-02-2017, 09:44 AM
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Car: 87 GTA, 88 GTA, 92 TA, 72 RS SS
Engine: 350, 350, 305, 396
Transmission: T56, 700r4, 700r4, T56
Axle/Gears: 3.42, 3.23, 3.23, 3.73
Re: Need help
Are the fuel injectors original? If they are they are probably bad, 1989 was a bad year for fuel injectors in these cars.
A quick check is to unplug them and measure the resistance of each one. They all should be around 11 to 15 ohms. Typically they short out and measure low ohms and cause the problem you described.
A quick check is to unplug them and measure the resistance of each one. They all should be around 11 to 15 ohms. Typically they short out and measure low ohms and cause the problem you described.
04-04-2017, 09:43 AM
#5
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Re: Need help
Are the fuel injectors original? If they are they are probably bad, 1989 was a bad year for fuel injectors in these cars.
A quick check is to unplug them and measure the resistance of each one. They all should be around 11 to 15 ohms. Typically they short out and measure low ohms and cause the problem you described.
A quick check is to unplug them and measure the resistance of each one. They all should be around 11 to 15 ohms. Typically they short out and measure low ohms and cause the problem you described.
actually the injectors from 1985-1992. The biggest problem with them is the coil. We normally say anything less than 12ohms is an indicator that the coil is starting to go bad. The coils typically cause problems when the injectors are hot.
