DTC P0201? "Injector #1 control circuit"

[pipeguy]

I am getting a CEL with a DTC P0201.



I know the translation is "Injector #1 control circuit"



Can anyone tell me what this means.



I pulled the connection to the injector #1 and shecked the pins and wires. I pulled the cable for the TST (hooks to injector #1) and checked the harness and pins on it. All looks good.



Is this a code of an actual injector issue? I have read on www.tstproducts.com that it may mean a broken wire... but? I dont have any... ?



Can any one shed some light on this????

 

[Summit]

you will need to trace the wire to the ecm plug and test it from there to the injector plug, easiest is a wiring diagram. was at the dealer last week and they were fighting that on #6. dont know what fixed it but they swapped the inj. with a different hole and the code was still there. good luck.

 

[pipeguy]

I cleared the code and will try it again.



I guess the next step is to remove the TST harness and see if its coming from it or the stock harness.



FUN WOW!

 

[Summit]

my TST gives me the 2149 or 0336 code every month or so, clear the code and see if it comes back/ runs ok. the truck i talked about @ the dealer had a miss that wouldnt go away. does it seem to be running ok?

 

[pipeguy]

It has a bad occasional miss at idel when its cold. Knocks real hard every 3 min or so.



Then the idel is a bit rough kinda more like a 2nd gen...

 

[pipeguy]

I am also getting P0602 & P0606 ...



Have been getting them for a while and no CEL's.



TST said that they are common with there system ... . ?