GreenDieselEngineering wrote:
If GDE tuned it you can send them an email with the fault code and they can help with diagnosis.
GreenDieselEngineering wrote:
Are you sure GDE tuned that WK? The VIN in your picture does not match any WK vehicles we have tuned. Also the software basis is "1037386015". This is not a software we have seen on the WK and do not even have a tuned file for that software basis. Maybe the MPPS unit does not read the correct information on it.
Hi Keith or other,
GDE absolutely tuned this jeep, I cannot say if the MPPS is reading the vin correct as I did not verify. Current owner bought the hot tune and the GDE programmer some years back. There is no trouble code associate with the issues this WK is having. Essentially it feels like it falls flat - or starves for fuel, or torque converter lets go, or something.
We have been trying to troubleshoot the issue for awhile now it has gotten worse, however when the stock tune is reloaded the problem seems to go away. We were looking at some data we pulled and it seemed like when the issue was first coming up it only happened at high speed/high throttle demand/load. We took some data at the time with a bluetooth reader and it seemed like when the issue happened boost was capped at 25PSI, and rail pressure dropped almost in half. My thinking at the time is that it was hitting some sort of limiter or map constraint where the map is capped for safety. I was hoping to pull the tune to view the map and see if this was the issue.
That data aside, the problem has gotten worse since then so it seems like something else is going on. As I said before the issue seemed not to present itself with the stock tune loaded, now maybe it would take a little longer to present with the stock tune vs the HOT tune, but I think the issue is still somewhere else. Maybe there is a fuel flow constriction getting worse and the increase rail pressure demands the fuel system cannot keep up with? Maybe there is an injection pump issue?
All that aside right now we were really just trying to download the stock tune to take a look at it to understand what maps are present and where we might hit a limit.
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