Hey everyone I am now a new 2003 3.3L Caravan Owner.So now my van have the P0201 code blues. I have been trying to fix the problem like- changing #1 INJECTOR, the fuel injector Harness and some ecm/pcm box wire testing. So after some time pass by ,I found that the injector #1 has no power to it. I am now down to these questions, What brings power to the #1 injector to the pin #13? or Where does the Pin #13 injector 1 power is located.I have finally figure that the number 1 injector is not getting power. thank you all for the help.

 

25 amp fuse #16 through the output contacts of the auto shutdown relay and on to the injectors. The PCM turns the ground on and off.

 

2-6 injectors works fine #1 injector do not have power.

 

Yup we know that. I answered your question by explaining where injectors get there power and what controls their on/off cycle.

So now I'll answer your next unasked question - what to try next? I would get a noid light and connect it to the #1 injector wire harness. Crank the engine and it should blink. If it doesn't blink, that wire is bad or the #1 injector driver circuit is toast inside the PCM meaning you will need to replace the PCM.

NOID lights are available for sign out from most parts stores. Here's some examples: http://www.amazon.com/s/ref=nb_sb_no...s=NOID%20light

Want the wire diagrams? Send me a private message and include an email address. How? Click Cougar41 at left.