1988 Mustang GT injectors

[Tattoo54]

When you start the car it starts fine ,then goes to missing on 4 injectors. But if you give it gas it smooths out

 

[RaggedGT]

Check engine light on? Pulled codes?

 

[Mustang5L5]

Define "missing on 4 injectors" how are you determining this?

88s dont have a functional CEL so please pull codes and run cylinder balance test

 

[jrichker]

Dump codes sticky

Look at the top of the 5.0 Tech forum where the sticky threads are posted. One of them is how to dump the computer codes. Codes may be present even if the CEL (Check Engine Light) isn’t on. You don’t need a code reader or scanner – all you need is a paper clip, or if your lady friend has a hair pin, that will do the job.
I highly suggest that you read it and follow the instructions to dump the codes. http://www.stangnet.com/mustang-forums/threads/how-to-pull-codes-from-eec4.889006/

 

[Tattoo54]

Define "missing on 4 injectors" how are you determining this?

88s dont have a functional CEL so please pull codes and run cylinder balance test

Took the plug wires off and no change in the engine

 

[Tattoo54]

Check engine light on? Pulled codes?

No check engine light on

 

[Mustang5L5]

No check engine light on

There isn't a CEL on 1988 speed density cars.

Took the plug wires off and no change in the engine

Have you verified spark? Unplug the injector and check resistance across the two prongs. Should be about 14.5 ohms for each injector