[PINeely]

I installed a DP Fix on my car a couple of years ago and never really could get it to work properly. Sometimes I have an SES from the O2 sensors but most times I don't. Lately I've been chasing down all of the minor problems with the car and getting them corrected but this one has totally stumped me. I have had the DP fix dial turned to every single position and cleared the codes/ driven per the installation instructions but the codes always come back after 50 miles or so (2C31/2C32). I've triple-checked that it is installed properly as well.

Has anyone had this problem who could point me in the right direction? Is it possible that I just got a defective part?

[PINeely]

I am still on JB3 by the way. PNP model.

[Infamy]

You shouldn't be driving around with that installed. It's just to pass emissions and that's it.

[PINeely]

Originally Posted by Infamy

You shouldn't be driving around with that installed. It's just to pass emissions and that's it.

Really? This is news to me.

[GreaseMonkey]

It will mess with your O2 sensor readings if installed over a long period of time. Remove the DP fix and reset trouble codes. Should be back to normal from that point on.

[PINeely]

Thanks guys! I have no idea how I missed that detail.

[blisstik]

Does the JB4 pass readiness?

[Jeff@TopGearSolutions]

Originally Posted by blisstik

Does the JB4 pass readiness?

Not without a DP Fix properly configured.

[Mike@N54Tuning.com]

Originally Posted by Jeff@TopGearSolutions

Not without a DP Fix properly configured.

and to add the JB4 needs to be off as well.

Mike

[shadow191]

I believe the issue is that there are 2 O2 signals, but the DPFix only has 1 output. So eventually you get different AFR's between the banks. That's what some people have shown. Lots of people get weird codes with it installed, so they pass emissions and remove.

Originally Posted by PINeely

Really? This is news to me.