4100 D F I injector problems... looking for solutions

[cton]

Hello,

I have 83 coupe and it has lost power,gas only comes out of one injector of the two, I switched the wires over and its vice versa. I'm gettin ready to check my E C M but I would like to know what the injector drivers are and thier location, what else could be causing the problem. I get code 52

here is whats going on, in PARK at regular idle, the engine will go really low to where it feels like it is going to stall out,( actually it did stall out when I cam to a stop til I changed my vac hoses) but it will smooth out ... this is an constant up and down ... up and down . while driving I start out slow like the tranny is in low (tranny does shift) sputtering I have to hold accelerator to floor then as it starts to gain speed I gradually ease up off accelerator

DOES THIS FAMILAR TO ANYONE any info will be appreciated

[The Ape Man]

Have you checked your injector fuses? There are a pair of 3 Amp fuses at the bottom of the fuse panel. Hopefully, that will be the problem. #1 cause of blown injector fuses is a pinched wire at the throttle body. Check to see that your wires have not been damaged previously.

[cton]

yes I have checked my fuses and they are good , I will double check the wires at throttle body, my fuel pressure is holding @ 13 psi its getting stressing to me
i will let you know about the wires thanks

Originally Posted by The Ape Man

Have you checked your injector fuses? There are a pair of 3 Amp fuses at the bottom of the fuse panel. Hopefully, that will be the problem. #1 cause of blown injector fuses is a pinched wire at the throttle body. Check to see that your wires have not been damaged previously.

[The Ape Man]

IIRC, the injectors are switched right from the ECM with no discreet devices.

[cton]

whats up thanks , called N.A.P.A. bout ecm hopefully I will have a new one by friday had to be ordered just making an exchange

Originally Posted by The Ape Man

IIRC, the injectors are switched right from the ECM with no discreet devices.

[codewize]

I just recently had a similar case. After changing a gas tank one of my injectors stopped working. I was shopping and ready to buy new ones.

I tapped on the failing injector and it came back to life. This went on for about a week. Every few miles or so I'd have to get out and tap on the injector. Not fun. After the week of doing that it got worse, harder to get back to life then all of a sudden with a few taps it was perfect and hasn't failed since.

Something very small may be stuck in the injector. Just my 2 cents

[bwood]

i would examine the connectors that fit on
top of the injectors very carefully before
spending any money...

if i remember correctly, those connectors
are a service part and can be replaced...

[The Ape Man]

He said that swapping the injector plugs makes either injector work so it is not the injector itself. Next logical step would be to get a schematic and check the injector terminals right at the unplugged ECM to see if you get the same resistance reading as at an injector.