C9 Cat engine performance without FLS, FTS and injectors trim code programmed

[Pep Joe]

What is engine performance without FLS and FTS codes programmed and without injectors trim codes programmed?

Am asking cos today i connected a Cat ET to a C9 (sn:thx00719) and found they were not programmed. Engine working fine but has active codes for the none programmed parameters. the engine is used on D6R sn WRG00195.

Need advice on if i should leave the Doxer like that or get the codes and do the programming.
Thanks

 

[Cmark]

Depending on your version of ET, you may be able to reprogram them yourself. However, be prepared for it to happen again. The problem isn't uncommon and is a symptom of a failing ECM. Once it starts occurring, I've never let it go on long enough to find out if it leads to a failure.

 

[Nige]

Did the FlS, FTS, & Trim Codes parameters in the ET screen show up as "Not Programmed" or something else like "0000".?

 

[Pep Joe]

Did the FlS, FTS, & Trim Codes parameters in the ET screen show up as "Not Programmed" or something else like "0000".?

yes they showed as NOT PROGRAMMED

 

[Pep Joe]

I know i v

Depending on your version of ET, you may be able to reprogram them yourself. However, be prepared for it to happen again. The problem isn't uncommon and is a symptom of a failing ECM. Once it starts occurring, I've never let it go on long enough to find out if it leads to a failure.

Sure i know i can program them on my own but want to know the effect on if i don't. thanks

 

[Nige]

The effect of not programming FLS & FTS on power & torque could be significant. Injector Trim Codes not so much.

Is the plate still on the valve cover with the FLS/FTS values for that particular engine on it.?

I agree with Cmark that the values showing as Not Programmed is a likely indication that the EPROM chip in the ECM is failing.

 

[Pep Joe]

The effect of not programming FLS & FTS on power & torque could be significant. Injector Trim Codes not so much.

Is the plate still on the valve cover with the FLS/FTS values for that particular engine on it.?

I agree with Cmark that the values showing as Not Programmed is a likely indication that the EPROM chip in the ECM is failing.

no, the nameplate not there again but i could get them from SIS in "engine performance specifications". thanks for replies.

 

[Nige]

no, the nameplate not there again but i could get them from SIS in "engine performance specifications". thanks for replies.

The FLS/FTS values in the performance specifications are the starting point for dyno testing an engine. On the dyno the numbers are adjusted until the engine turns out both specified BHP & torque. The starting FLS/FTS figures for the 0K6645 Performance Specification applicable to your engine are FLS 26 & FTS -6 (negative 6).

THX00719 left the dyno with an FLS of -41 (negative 41) and an FTS of 80, both of which are significantly different to the specifications.

 

[Pep Joe]

The FLS/FTS values in the performance specifications are the starting point for dyno testing an engine. On the dyno the numbers are adjusted until the engine turns out both specified BHP & torque. The starting FLS/FTS figures for the 0K6645 Performance Specification applicable to your engine are FLS 26 & FTS -6 (negative 6).

THX00719 left the dyno with an FLS of -41 (negative 41) and an FTS of 80, both of which are significantly different to the specifications.

thanks a lot for this. so helpful!!