Limp mode

[markemac]

I have an off road vehicle that was brought to me to find and cure a problem, It has a 2006 HHR 2.4L and DBW, it has a problem where it will loose the throttle control, the pedal position moves on the scanner but the throttle butterfly will not, I did get it to happen twice for me. it does not get any codes, but someone may have turned off the ones that it might set to indicate the problem? where would I see the correlation or prediction or ??? that is needed to make this not happen, it has an aftermarket air filter assembly and the MAF is in a tube, so I think the predicted to actual or correlation or??? may need some tweaking? anyone worked with this type of problem?

[nonnieselman]

Need to read the tune off to see whats in there

[markemac]

Need to read the tune off to see whats in there
I have the tune, and have modified the fueling and spark

[nonnieselman]

Did they disable a bunch of codes compared to a factory file?

[markemac]

Did they disable a bunch of codes compared to a factory file?

there are a lot of codes turned off, the one that is important is MAP/MAF correlation P0068, I am turning it back on and i'll bet it sets the code

[joecar]

There are probably more than one code responsible...

[gmh308]

I have an off road vehicle that was brought to me to find and cure a problem, It has a 2006 HHR 2.4L and DBW, it has a problem where it will loose the throttle control, the pedal position moves on the scanner but the throttle butterfly will not, I did get it to happen twice for me. it does not get any codes, but someone may have turned off the ones that it might set to indicate the problem? where would I see the correlation or prediction or ??? that is needed to make this not happen, it has an aftermarket air filter assembly and the MAF is in a tube, so I think the predicted to actual or correlation or??? may need some tweaking? anyone worked with this type of problem?

2006 HHR 2.4 comes up with an E67. While it could be a P0068 MAF/MAP correlation fault, it could also be a throttle controller/ETC OS/cal mismatch - P0606. Not uncommon with conversions where the main ETC cal doesn't match the throttle controller slave cal. Outcome - dead pedal from the get go or while driving.

[markemac]

2006 HHR 2.4 comes up with an E67. While it could be a P0068 MAF/MAP correlation fault, it could also be a throttle controller/ETC OS/cal mismatch - P0606. Not uncommon with conversions where the main ETC cal doesn't match the throttle controller slave cal. Outcome - dead pedal from the get go or while driving.

I have tried everything I can think of. there must be more DBW tables that are not available, which are probably too difficult to set up properly.
I ordered a link ecu that should fix it