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So I'm having this issue that is driving me crazy. My SAI (Secondary AIr Injection) and Oxygen Sensor are not reaching "Ready Status"
A little background about my car.
2006 Boxster S 3.2L
FVD Exhaust system
GMS Headers with 200 cell cats - has all 4 O2 sensors attached.
996 throttle body and distribution hose
ECU Tuning Group tune
I had the car up in BC Canada since 2009 (although it is a US car) and had no problems passing the sniffer and obdII tests - both before and after all the mods except for the ECU tune.
I went to get my emissions testing done last week in Texas and failed due to the 2 systems being in not-ready status. I figured it might have to do with the cat delete (ROW) configured in the tune. I sent my ECU back to ETG in California and had them re-flash my ECU in order to re-enable the O2 sensors.
I cleared all codes and figured I would start fresh. I drove the car about 120 miles and attempted to follow the drive cycle mentioned in the forums but it was really tough with the roads out here. Everything is in ready status except for the SAI, and the O2 sensor. I can manually start the SAI using the Durametric system so I would believe the pump is not bad; however, I'm not
sure that I"m hearing the SAI start up when I cold start the engine.
For testing purposes I unplugged my O2 sensors from both bank1 and bank2 and they both threw fault codes which confirms that the ECU tune re-activated my sensors.
I've uploaded a few pictures with the results from a OBDII app as well as the Durametric Software to my Google Drive. I'm not quite sure how to interpret the Durametric Voltage results - especially the negative 50 V and -127V - seems quite odd.
Any help or guidance will be appreciated as I'm out of ideas.
I just ordered version 15.7 of VAGCOM original VCDS ross-tech software (not a china rip off cable). Im going to use mainly for my 2013 Audi A4 3.0t and also some limited diagnostics on the Cayenne as the 2003-2006 share a lot of modules with the Toureq.
Has anyone had any experience good or bad from using VCDS on their Cayenne?
Some mixed posts on other sites bashing VCDS and some scare mongering too (like it will kill your "VW part number" module! somehow I don't think so), but also a few posts about it being more capable than Durametric in some cayenne modes (he had a Turbo S 2006), so im hoping my cayenne turbo 2006 with E81 power kit will also be compliant with the VCDS to an extent.
Once the VCDS comes first thing is to find this pesky stutter hesitation issue I have still.
I'll report back some logs and data .................... unless it fries my module then I'll close the post quietly :)