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Old 04-14-2013, 06:59 PM
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Fuel Injector sprays to much gas

What I have is 1989 dodge 250 van it has a 318 in it the problem is that one fuel injector sprays alot the other very little which is giving it to much gas and it does not even want to turn over but you unplug fuel pump after a few cranks she will start plug it back in it dies and does not want to start I replaced the fuel regulator one thing about it is that the one injector that sprays alot is the one that is hooked to that connector switch around the other injector will spray alot so im thinking that the signal to that connector is bad someone please help.

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Old 04-14-2013, 07:08 PM
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I will assume you have a throttle body injection
From what you are describing ...the injector is staying on too long spraying too much fuel.
It sounds like a BAD PCM right off the top of my head.
If you could check the injector pulse width, you can verify that.
You cn check the pulse width on the data stream if you have a scanner that supports it, or you can check it with an oscilliscope...
Chances are you dont have an O scope so.......unplug both oxygen sensors to be sure they arent forcing the trims off the chart. If that doesnt clear it up...
Try another PCM
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Old 04-14-2013, 07:13 PM
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ok ill try that becouse like i said you can put that connector on the other injector and it will do the same thing, before this happened the van all of a sudden started to act like it was not getting enough fuel bogging way down and dying but it would start, but ya ill give that a try thanks, but if you have anything else that i can try also just let me know.
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Old 04-14-2013, 07:25 PM
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what is another name for the PCM?
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Old 04-15-2013, 07:23 AM
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maybe an ECU if you call a junkyard.You are not getting any codes on the dash?
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Old 04-15-2013, 10:01 AM
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will a ecu from a dodge truck work and if so what years will the one that i got the regulator from work its the same throttle body unit?
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Old 04-15-2013, 10:25 AM
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Ecu

You are going to have to check if the engine is a California emissions car and so on to get the correct ECU.
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