[apexxx6789]

Prepping for emissions and after setting things back to stock i keep on getting 2A13,DMTL leak diagnosis pump, activation.

Code is never present when tuned. All systems are ready to include evap as long as i dont clear the service engine soon/code for a while. Code comes back every time power is cycled. Why?

I can pass emissions with evap not ready but didnt realize i would fail if code is present. Replaced gas cap and pump last time with no change. WTF

[SlowE92]

Originally Posted by apexxx6789

Prepping for emissions and after setting things back to stock i keep on getting 2A13,DMTL leak diagnosis pump, activation.

Code is never present when tuned. All systems are ready to include evap as long as i dont clear the service engine soon/code for a while. Code comes back every time power is cycled. Why?

I can pass emissions with evap not ready but didnt realize i would fail if code is present. Replaced gas cap and pump last time with no change. WTF

Might be a dumb question but have you completed a full drive cycle? Also is the auto code clearing off?

[dmckmc]

it could be the DTML pump really is faulty or there is a leak. Many here, including me have had to replace the pump due to failure. I use JB4 with MHD to flash tune.

[oVeRdOsE.]

Originally Posted by dmckmc

it could be the DTML pump really is faulty or there is a leak. Many here, including me have had to replace the pump due to failure. I use JB4 with MHD to flash tune.

I have a similar code (small leak), and this is since my swap. Before the swap I had JB4 BEF and no code.

Ive changed to DTML (easy job) still same issue.

I need to do a smoke test at this point.

so common leak point :

- DMTL
- cracked hose in the engine bay due to heat
- cracked fuel tank cover (the one under the rear seats, there's 2 cover)
- evap valve under the hood.


In my case I ''think''' is the plastic line over my rear subframe, i might crack it when I put my subframe back on the car. Worst scenario