Noticed a few weeks ago my crusie control stopped working. Since last weekend i have had intermittent starting problems. The following codes appear on the code reader: P1689, P1693, P0237. After i get the truck started, it runs fine, although it seems to be lacking a litlle power. My truck only has 70000 miles on it and it seems a little early for the injection pump to be going out? Any suggestions?

 

P1689 - No communication between the Injection Pump and ECM (Not a good thing!)
P1693 - Companion Code, it will appear when there is a code in a controller
P0237, Boost sensor low voltage signal

What kind of modifications if any are done to the truck? Once it is running, how does it perform?

 

It has a Banks Power Pack, full exhaust from the turbo back and a High Ram Intake. It seems to run fine but feels like it is lacking power>

 

I strongly suggest getting a fuel pressure gauge on that truck. Even bone stock they barely have enough flow to the injection pump. Too little flow (pressure) and the $1000+ vp44 is toast. Knowing fuel pressure can determine how well the engine will perform. 10 PSI at WOT is the minimum value your looking for.

 

X2 on that

 

I get the same codes, except the P0237. I have a new VP44 and Airdog 150. The codes only come up when the temperature outside is over 50 degrees. I have no idea what this is. Any idea's?

Jim

 

check to make sure all your connections are good on ur chip... i had a head gasket done on my 2002 dodge and had the same codes show up.. turns out they forgot to put a ground wire back on for my edge tuner.... hooked the ground back up cleared the codes and havent had anything since.

 

good idea