Check the supercharger snout bearings and change the supercharger oil.

 

Thanks for all the advice and information gents!

 

are you trying to measure resistance? On what? The injector or the harness?

an open circuit measures infinity for resistance

 

The multimeter was hooked up to the injector terminal with the harness or connector unplugged. One thing I didn't do, is to get a void light and plug it into the injector connector to see if the injector wiring is even getting power. I feel the need for this step was eliminated once I checked the ohm resistance on the terminals on the injector itself and got no reading. I think a functioning injector should have a reading of 11-16 ohms. But then again, it could be a combination of a bad injector plus bad wiring. I will soon find out. Working on it over the weekend.

 

Well compare injector to another one. If different then ones bad. And don’t use test lights on these cars. It’s sure way to **** stuff up. Use a voltmeter or oscope

 

Thanks for the advice. I haven't had the time yet to take everything apart. Have a basement reno going and the garage is packed with everything we moved out of the basement. My STR is patiently waiting. Hate to keep her wounded but not driving until I fix her up. Gives a bit of time for a the parts to come in. I might do a write up with pics when I begin the job so others can see what it takes to repalce injectors.

 

Have an update. I've taken on this project and spent about 3 hours taking everything apart following steps in the forum and JTIS. Got to the egr valve. Took out the left side 8mm bolt from egr to SC. Got to the right side 8mm and it has stripped. Tried using a* 5/16 extractor bit to no avail. I tried to detach rear of SC and throttle body elbow/bracket but still no luck. I've thoroughly tired myself mentally and physically. I'll try to come back with a fresh mind tomorrow but not sure how to proceed at this point. I'm sure there's a way. Guess it wasn't my day to find out how

 

Yes those are known as "The Evil Bolts" that an old member TTwotee's fought with on his STR. Time and temperature guarantee those bolts will be a problem too!
Here are some threads that might help and lots of pictures and alternate ways of doing it.
SC Remove

Sc Removal
Here is another good thread - EGR Remove

Finally here is the biggest thread yet from where ttwotee's named those bolts!!
Evil Bolts
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thank you for your input. Tried essentially everything listed on all forums and discussions related to EGR or SC removal with the exception of welding a nut or bolt to the stripped bolt which is not something I can do (even if I could, how is it physically possible with at most 4 inches of space?). So in short, still spinning my wheels. I wish it was the ones on the car being spun but mostly it was me laughing and kicking the ground everytime I failed. Weird neurological habit of laughing when I should be crying.

I also tried to detach the intake plenum or the bracket on which the throttle body sits but even after separating the SC and that intake elbow at the rear of SC, there is absolutely no room to get the bolt underneath SC. British engineering at its best I suppose. If there were such a thing.

At this point, after spending another 2+ hours today, I think its best to take it to the pros. Honestly, dropping the engine is the only way this job is meant to be done. Not sure how to move forward but I'm sure one way or another, things will work out how they're supposed to.

 

Update to the injector mess: I got a bit busy last month but I managed to fix my STR. There is a Youtuber, Scotty Hopp, had the same car, same issue with an injector, facing the exact same daunting challenge of removing SC to get to it.

Using his method as inspiration, a friend and I were able to get it done. Anyone who faces the challenge of removing SC should watch his videos. Very helpful in addition to the wonderful writeups offered on this forum. Glad to have the old minx up and running!