2001 2500 starting issue

[Me78569]

you aren't lighting the 64 because your injectors are tiny for the turbo.  

 

boost is a measurement of restriction not flow.  A 64 will more more cfm at 32 psi than a hx35 will.  I doubt you are hitting 500 hp with the limited fuel you have.

 

 

you def have a fuel issue, doubt it is your map.  I would be looking at the injectors personally.

[Daveb]

I FOUND THE FIX!! 

 

Hello All,

 

For anyone with an engine light that contains a p600 code (there may be others too such as fuel calibration, map voltage, or IAT voltage, etc.)

 

ISSUE: I had no wait to start light as well as strange throttle responses as if the APPS were failing (mine was not, it tested perfect).  

 

The issue was a corrupted ECM.  I decided to send the ECM to Auto Computer Specialist in Florida and they did a great job flashing it and it resolved ALL issues.  I had a p602 code (among others) which according to them was due to bad terminals and batteries.  I had two family farm and home batteries (with aging terminals as MI salts roads) and they apparently could not survive a Michigan winter.  

 

So, if you have a 2001 with any p600 codes they informed me this is due to the batteries and terminals creating a voltage surge to the ECM corrupting the main processor...  This is the main cause of a 600 code.  There is also a limited number of times they can clear this but I am hoping that I never have to do it again...

 

Hope this helps the next guy and sorry it took so long to post.

 

-Dave

 

 

Edited June 6, 2018 by Daveb

[Hawkez]

Did they do any repairs to the ECM or simply just reflash it?

[Mopar1973Man]

Might look into the ground wire mod by @W-T .