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Discussion Starter · #1 ·
Hey y'all.. have an 04 dakota with the 3.7.... Started missing.. and after a set of plugs, some new injectors and coils, have determined the issue is voltage for injector on # 2 cyl. All others cycle 0.5 to 1.5 approx.. while #2 is up around 13.8 14. 4.. anyone know why? Thanks folks
 

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Is that both sides up around 13.8 to 14.4? If so, I'd check the wiring back to the ECU and make sure there's not a broken wire or bad connector between.

RwP
 

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Discussion Starter · #3 ·
It is on both sides i believe.. so yes, i agree , tomorrow i will tear into the harness and see if theres an issue.. could this be a faulty pcm?
 

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It could be yes.

I'd check ALL the connectors first; those tend to be weak spots in ANYTHING electronic, and let's face it, they're a lot cheaper than the PCM is!

RwP
 

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Discussion Starter · #5 ·
Aint that the truth....
If i end up needing the pcm.. which i hope is not the case... say i obtain one from a salvage truck, will it have to be flashed to work in mine?
 

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My understanding is yes; but I could easily be wrong on that (being as how you just moved from basic electricity into "Dodge does it Different" :p

RwP
 

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If it turns out to be your PCM, last summer I sent mine '03 RT with a 5.9) out to a place in Tilden, Il. called SIA Electronics. I can't remember what the final damage was, but it didn't break the bank. I was having 0 voltage from the trigger wire to the coil at the time. I've been good ever since.
 

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Hey I know it's been over a year since this thread but I am having the same issue with 2000 2wd 2.5 liter dakota miss fire in cyl 2. Volt meter is reading 13 to 14 volts on both sides of plug only on that one. When I checked it at the computer idk if I did it right or not but when running it reads 13v. Did you ever figure out if it was a connection in the wire or did it end up being the pcm? I looked thru my harness a little bit and it seems like there is a pinch but just trying to figure out more info before I have to really dig in it to it
 

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Hey I know it's been over a year since this thread but I am having the same issue with 2000 2wd 2.5 liter dakota miss fire in cyl 2. Volt meter is reading 13 to 14 volts on both sides of plug only on that one. When I checked it at the computer idk if I did it right or not but when running it reads 13v. Did you ever figure out if it was a connection in the wire or did it end up being the pcm? I looked thru my harness a little bit and it seems like there is a pinch but just trying to figure out more info before I have to really dig in it to it
Use a NOID light to see if the circuit is being fired; a multi meter won't tell you jack squat unless it's an analog meter and you can cipher out the needle dancing.

RwP
 

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Use a NOID light to see if the circuit is being fired; a multi meter won't tell you jack squat unless it's an analog meter and you can cipher out the needle dancing.

RwP
For my education, Ralph, if he & OP were getting readings of over 13 volts, wasn't that telling them what they needed?
 

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Nope.

Our injectors are ground switched; as long as the ASD is on, they'll get battery voltage or system voltage.

And the injector resistance will keep the high side from dropping.

You need the NOID light to see the pulses.

RwP
 

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Nope.

Our injectors are ground switched; as long as the ASD is on, they'll get battery voltage or system voltage.

And the injector resistance will keep the high side from dropping.

You need the NOID light to see the pulses.

RwP
Ralph, what do you think about this one from Horrid-Fright?
It doesn't list being Dodge applicable, but I read one of the customer comments & that customer says that it is.
 

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For our TBI units, the GM TBI NOID light works a treat.

For the others, just have to find the right one to fit the connector; depending on the year, it's one of two standards.

RwP
 

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For our TBI units, the GM TBI NOID light works a treat.

RwP
I had finished off a bottle of Cabernet by the time I read your reply, Ralph, & I was thinking, "WTF is works a treat?" That's why I asked you to clarify that the Horrid-Fright NOID light I asked you about would work on a Dodge. It came to me later that you meant works great.
 

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I had finished off a bottle of Cabernet by the time I read your reply, Ralph, & I was thinking, "WTF is works a treat?" That's why I asked you to clarify that the Horrid-Fright NOID light I asked you about would work on a Dodge. It came to me later that you meant works great.
:LOL: :p o_O :ROFLMAO:

RwP
 
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