TDStuart Tuning Adventure

[tdstuart]

@tdstuart cam you post tte .enc file?

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[K4fxd]

My settings for the DFCO will turn it on when on the feeway and off in town.

 

[GregO]

My settings for the DFCO will turn it on when on the feeway and off in town.

Via cruise control ?

 

[K4fxd]

No it is set to turn on over 60 Mph.

 

[WildHorse]

The car is having the same issue as it had with the tuner that started the tuner cant tune car thread.

IIRC you said it ran fine on a LUND tune ? Then whatever it is LUND tuned around it, whereas yourself, & the other tuner still having the same problem.

I'd kill the IMRC, maybe it's not playing nice with the cams.

 

[K4fxd]

IIRC you said it ran fine on a LUND tune ? Then whatever it is LUND tuned around it, whereas yourself, & the other tuner still having the same problem.

I'd kill the IMRC, maybe it's not playing nice with the cams.

From the logs I saw it is the cam timing. Lund got it right.

 

[tdstuart]

From the logs I saw it is the cam timing. Lund got it right.

IMRC is closing during the pull. I updated the cam timing and I managed to get some cleanish pulls but when its sluggish I am seeing the imrc closed and it throws a code to back it up.

Will have to do more research on how to get the imrc to be happy.

 

[tdstuart]

IIRC you said it ran fine on a LUND tune ? Then whatever it is LUND tuned around it, whereas yourself, & the other tuner still having the same problem.

I'd kill the IMRC, maybe it's not playing nice with the cams.

Lund didn't "tune around it". Whatever the issue is Lund just knows to fix it in the tune as they never had to update my tune to fix it.

Looks like the IMRC is closing causing my power loss. Need to figure out the right settings for the imrc

 

[engineermike]

The 2018 imrc are vacuum actuated and there is no vacuum at wot. I don’t think they are closing at wot. However, the actuator and sensor voltage ranges are different and possibly even reversed vs gen2. If that’s the case it might be sensing a false error, which throws a code and potentially limits power, or using the wrong mapped points which affects all sorts of things.

 

[K4fxd]

Here are the settings for IMRC. Use the spread sheet or search function in PCM tec to set all of these to what you see.

 

[tdstuart]

Here are the settings for IMRC. Use the spread sheet or search function in PCM tec to set all of these to what you see.

Already have slop and offset updated. Looks like the closed and open angle needs to be updated but the spread sheet doesn't have it and I can't find it in pcm tec either

Edit: Found it

Here are the imrc angles in pcmtec:
IMRC angle considered closed (auF34574) [STOCK: 78] [18+: 57]
IMRC angle considered open (auF34570) [STOCK: 12] [18+: 19]

 

[K4fxd]

Here, I don't mind helping but you gotta do some leg work

 

[K4fxd]

>

 

[WildHorse]

Lund didn't "tune around it"

Okay.

 

[tdstuart]

Here, I don't mind helping but you gotta do some leg work

I already have those values and that's what I've been using in every tune. Read the post right above yours. I couldn't find the imrc sensor closed/open angles but I found them

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