no power to Injectors 2002 4.7
#1
no power to Injectors 2002 4.7
Thank all of you that have helped to understand the 4.7
After sorting out the Engine grounds, still need more help.
.
No start "No codes " No power to Injectors, but have proper ground................and 12v to coils and ground thru harness. What am I not seeing / understanding ?
After sorting out the Engine grounds, still need more help.
.
No start "No codes " No power to Injectors, but have proper ground................and 12v to coils and ground thru harness. What am I not seeing / understanding ?
#2
You should only have power at the injectors for about 3 seconds at initial key on, after that, the PCM needs to see the engine turning to re-apply power. (but, if you are getting spark, it's all good.) The PCM fires the injectors by grounding the control circuit, if you have constant ground, that would hold the injectors open, and flood the engine in short order. PCM should pulse the injectors..... Need a noid light to test that. Should be able to rent/borrow them from your local parts store.