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| Author: | yellkayak [ Wed Feb 12, 2025 11:20 pm ] |
| Post subject: | Injector codes you |
P0202 and P0204 injector codes . What do I look at to fine the fix. |
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| Author: | WWDiesel [ Thu Feb 13, 2025 12:25 am ] |
| Post subject: | Re: Injector codes you |
yellkayak wrote: P0202 and P0204 injector codes . What do I look at to fine the fix. Check your wiring and connectors to the injectors. P0201 -- Injector 1 – circuit malfunction Wiring, injector, ECM P0202 -- Injector 2 – circuit malfunction Wiring, injector, ECM P0203 -- Injector 3 – circuit malfunction Wiring, injector, ECM P0204 -- Injector 4 – circuit malfunction Wiring, injector, ECM |
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| Author: | yellkayak [ Thu Feb 13, 2025 1:18 pm ] |
| Post subject: | Re: Injector codes you |
Put a code reader on today , also threw a P0300 . Multi cyl. misfire. I’ll check wiring, how much voltage should I get at injector plug? The trouble is it’s erratic. Thanks Gary |
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| Author: | yellkayak [ Thu Feb 13, 2025 2:04 pm ] |
| Post subject: | Re: Injector codes you |
I seems like it ran ok when first starting up while in warm up mode ( choke on ) but it’s hard to tell. It doesn’t do it for weeks at a time. Gary |
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| Author: | WWDiesel [ Thu Feb 13, 2025 2:27 pm ] |
| Post subject: | Re: Injector codes you |
The signal going to the injectors is a pulse width modulated signal from the ECM and would have to be measured or monitored with a scope. You could always contact Marco (aka Yeti on this forum) for more in-depth information on the signals going to the injectors. 
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