SRI Gold Connector Kit Install Issue - No OBDII Now?

I've been installing the gold connector kit today and started with the motronic. After spending half the day bent over, I got all the pins swapped and started her up. I'm trying to trace down an O2 sensor issue and am doing it piece by piece with this kit. I already did the bad O2 sensor pins as well.

After hooking everything back up and doing a "reset" by leaving the battery off for about 10 hours and then letting the car run for 10 minutes I can't connect with my obdII scanner. It just keeps saying no connection link or something to that effect. I've never had it say that before, so my question is is this normal after having the battery turned off for so long or did I screw up a connection some where?

 

Oh man. Not what I was hopin for given that everything else worked and ran fine. Any idea which wires go to the obdii port by chance. Would that be in a schematic?

 

I didn't touch the connector port itself. What is the second ground?

 

I've been able to use this scanner for the past year without any problems so I don't think it's the ground. I guess I gotta bother Dave again! This will be call number 2!

 

To check with an ohm meter do I just unplug the harness and turn the battery back on and start sticking a multimeter in each port with one prong connected to a ground?

Edit never mind. Google is a modern miracle. Will report back what I find. Thanks for everyone's help!

 

Ok, I've checked all the connectors. All of the large connectors are fine. However, about 80% of the small pin connectors register nothing. I'm assuming this is because they are on switched circuits that won't complete unless something is turned on?? So, this would be ok? I pulled the harness apart and hooked up the multimeter to the back of the connector to make sure it wasn't just a bad connection to the connector on my part and got the same no reading.

Man, I hope Dave is open on Saturdays! Want to take the car out tonight!

 

Ok, after getting a degree in german to translate the wiring diagrams and becoming an electrical engineer, it came down to a short from a wire that was bent too much that runs the obdii port. So, good thing is it wasn't my fault as I had noticed the wire showing through the insulation when I started, but in me moving stuff around, it must have made it short, but at least all my connections are ok.

To help those in the future who may have something similar, the wires for the obdii port are 87 and 88. If you look at the motronic connector (white plastic piece that all the wires feed into) it says the number of the last pin in each row stamped in the plastic. For reference, 88 is the very last pin. I traced these wires back to the exposed wire, taped her up, cut back some of the tape holding all the wires so it wouldn't get crimped again and we're back up and reading.... Reading the same damn error code as when I started!!!!!!!!!!!!!!!!!!!!!!!

So, after wiring that entire damn thing, I got absolutely nowhere tracing down my O2 sensor errors! Does anyone know what the next logical step may be in replacing connectors in order of those that might cause the dead sensor error? I want to try the most obvious ones first rather than just doing everything at once to save time for now. I may end up doing everything this weekend anyway at this rate, but would like to save my back and neck and piecemeal it if I can.

 

yelcab, thanks for hanging in there with me! This is a bit tiring but hope to get to the end of it soon.

I did replace the precat bank 1 pins and installed a new correct o2 sensor from ricambi. I did this first before doing the motronic in hopes that it was simple and to try and do things systematically, one at a time.

As for checking the voltage, I did compare side to side and they were the same. But, I don't see two black wires. The b1s1 wires are brown, green, purple and purple with black stripe. There is a black on the sensor cable itself running to the sensor, but only one.

 

After two resets, codes are exactly the same as before. p1115 and 0134. They pop up instantly. After this reset I haven't even driven it, just let it idle for 10 minutes and the codes are already pending.

 

Thanks for the help. The voltage does not change according to the scan tool on this sensor but does on the other 3. It stays at 4.35

Sensor plugs are definitely not backwards

Question. How would I check voltage at the Ecu? It has to be plugged in for the car to run to create any voltage no?

 

Ahh, gotcha. My question would be this then. When I disconnect the o2 sensor from the wiring harness of the car, I do get the changing voltages on all the pins and it seems the same as the other side that is working correctly. So, wouldn't it have to be the same at the motronic or is there an ecu in between that gives it its voltage at the harness?