Darlingc

I have just finnished putting in new catless DPs (which I will NEVER do again!) and just like the title says it won't fire. I've checked all my connections that I removed for the install and everything seems good. Anyone have any ideas? I need my car by mondee because it's my only mode of transportation. It seems like it could be electrical but not sure. Any ideas would be helpful!
Thanks

xhackerekx

check again whole electrical plug and everythink what u disconected maybe u miss something or scan with vag.

Darlingc

I will triple check it, I wish I had a vag. Will a normal OBD II scanner help me find anything? My brother n law works at a cadillac dealer and he has a nice scanner. Any way a o2 sensor could be causing this? I left the two that went to the main cat out (replaced with a plug) because I will be getting it tunned soon to get that emissions CEL off. I do how ever have the front o2s in obviously.

xhackerekx

what code # show u scanner ?

donromani

You need to have all the sensors connected - this car is very finicky about starting up without all the electronic checks passing spec - one random sensor that is disconnected or giving out of bounds readings can cause it to fail to start.

Teutonix

O2 sensor will not cause a no-start condition. Your car will run without ANY O2 sensors connected. Retrace your steps and double check anything you touched for the install. (I'm thinking vac lines or sensors near the back of the engine bay that you might have touched from the topside.) A vag-com/VCDS would save a lot of time here....

Darlingc

It's all good now. It took me for ever but i traced down a broken wire under my coolant Rez. Thanks guys for all the suggestions!