[project 911]

This is starting to make me crazy!

I have a 2.2T with Zeniths, MSD and Crane optical points replacement.

A while back I started to have problems with backfiring and some popping through the carbs. I checked for exhaust leaks , etc. I tested and found that the RPM transducer had quit (had no power activating the enrichment solinoid on the carb). I replaced it with another one I had and everything seemed better till the other day. Well, the replacement is toast too. I think I probably damaged both of them trying to hook up my tach to the MSD box.

So, some people say you can just toss the whole setup and be fine which I would love to do at this point, but I'm not sure how you "tune out" the popping.

The other option is to repair one or both of the transducers. I'd like to do it myself if possible, but I know there is someone on this board that can do it (companzer?).

I tried running a jumper wire (without the tranducer) that powers the solinoid when in the closed throttle possition, but still seem to have problems. I'm also wondering since I don't have and tach or points signal going to the transducer if that makes the whole thing not work anyway.

I'm having a terrible time trying to get the car tuned and I want to eliminate this part from the picture before I move on to all the other possible issues.

The main problem right now seems to be right at the point that the microswitch is activated (closed throttle). When I press the gas it pops through the carbs (just when I first touch the gas). It wants to backfire on decel unless I completely lift off the gas to activate the switch.

The car starts fine, accelerates fine, pulls hard, but this popping and banging is keeping me from driving comfortably.

Any advice? (I did go through lots of info in the archives about the transducer)