Dear Bombers,

I've recently bought an MT45 (X-FedEx) truck. I am losing power at top speed, then I need to down shift and build up RPMs and it runs fine for a while. Well it has a check engine button that gives flashing light codes (two number codes). Please does anybody have a list of these codes.

Thanks Jimmy

 

The retrieval of codes does not constitute an engine diagnosis. However, there are some codes that usually indicate a defective injection pump. A current P1688 always means that the pump is bad, there is no further diagnosis required. Code P0216 is probably the most common code for VP-44 Pumps. If transfer pump pressure has been checked and is O.K., the injection pump is defective. Other codes that are less common are P0180, P0181, P0215, P0251, P0252, P0253, P0254, P0370, P1287, P1689 and P1690. These codes USUALLY, but not always indicate a defective pump. There are wiring and power checks to be performed if these codes are present. These codes relate to Dodge pickups only, and are not for any other ISB application.

 

Thanks Scott,

I'd like to find out what the 2 number codes on my dash check engine system mean. Please let me know if hear anything.

Thanks

 

What are the codes? Have you got them read?

 

Dear Scott,

The codes are: 43 44 34 27 82 78 43. I may have mis-interperated the pauses in the blinking lights and maybe it's 342 & 782.

Thank you.

 

I have never seen codes like that before

 

I know. I seen the others but not these.

 

get me the engine serial number and i will see if cummins quickserve has anything online about it.

 

Dear Keith,

It's a 5.9 ISB, No. 45653548.

Jim

 

thanks ill see what i can come up with on the two digit codes or diagnostic tree for your symptoms tomorrow and let you know what i can find.