as some of you have seen from previous posts, i have been having some problems with my 90. some of them have been from shoddy work done by the previous owners (i am the 4th).

have always shied away from working on the cars with computers but i started working on this and it has been an education. of course in earlier cars it was rather easy to diagnose a problem and even if you were a little off you could always use the excuse, "at least i know that is a new part."

not so with the computer controlled car. but from some help here and some hair pulling i have learned a lot. the biggest thing i learned was not always go for the computer parts and to troubleshoot the basic engine first and then go to the computer as most problems are usually a easy fix.

joel also pointed out that the scanners troubleshooting is the key to the scanner. i always looked at the numbers and went to the manual but had trouble diagnosing things. once i entered the troubleshooting part of scanner it explained a lot more.

anyway the whole point of this was that yesterday i went out and tackled the job of installing new injectors. as someone told me they were replaced before and after seeing some of the work done i at least know now that they are the right injectors. as i have never done this before i was kind of nervous but jumped into it anyway.

i was surprised at basically how easy it was. will go out today and finish the little i have left to do. i just want to tell some people that somethings may appear to be harder than what they actually are and not to be afraid to try and tackle some things. and most of all thanks to all who offered advice when i needed it either on my 90 or my 75.

Good advice Dave.

CONGRATS on the completed project...!!!             

I myself just recently replaced the infectors on my '85. I went a little further, and removed the intake completely to do a little detail work, but it's still not that hard a job. This stuff can look/sound intimidating to a lot of folks, but the service manuals, and other resources such as C3VR can make it all so simple.
Glad you got it done!!

jim, the tbi comes next. my 81 caddy has that and some suy screwed it up. got a rebuild kit for it yesterday and will start playing around with that. joel would have liked to have done a lot of detail work on it also while i had it apart but  at this point was more intent on getting it running right.

got it all back together yesterday and found another source of a vacuum leak. the hose going from the throttle body to the vent on the vale cover was broke and had a mile of electrical tape around it (some of the shoddy work). never saw it as it was under the wires that run along the cover. patched it for now with a brass union and clamps. have the replacement hose on order.

started it up and she purred. will have to do the fine tuning this week. thanks for all the help and support you guys give. just another point. was at another site that claim to have "experts" and every question i asked (which wasn't that many) went unanswered. whether the answers here solve the problem or not you guys at least take the time to give suggestions of things to check for. THANKS. dave