need help w/ '93 j30t

[timj30]

Got my j30 about 4 years ago and have put about 85,000 mi on it. (total175 k) The best car I've ever owned. About a month ago it started running rough at idle and during acceleration but smoothes out when cruising down the road. Have isolated the problem down to #'s 4 and 6 - no change in running when plug wires are pulled. Both coils are firing and will lite up a grounded plug when the car is running. Could this be the injectors or is there more to this problem. What is a good place to start? I understand the basics of an engine but have never worked on something this electronic - so please explain in detail what i need to do when talking about the electronic sensors. Thank you in advance!!

[DominickJ30]

Defenitely check the injectors, sound like they may be stuck.

[elwesso]

Welcome to NICO... most liekly the injectors are shot... Test them with an ohm meter, they should be 10-14 ohms, most likely around 12 ohms is good!!