# Injector problem **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** nissan, engines, gasoline, lights, maxima\ **Created:** [April 5, 2010, 10:06pm UTC](https://community.cartalk.com/t/injector-problem/47015 "2010-04-05T22:06:51Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![joaniecaucus](https://avatars.discourse-cdn.com/v4/letter/j/dbc845/32.png) [@joaniecaucus](https://community.cartalk.com/u/joaniecaucus)\ **Post date:** [April 5, 2010, 10:06pm UTC](https://community.cartalk.com/t/injector-problem/47015/1 "2010-04-05T22:06:51Z")
My 94 maxima in the shop for 3 weeks now - and still not fixed. Check engine light intermittently on for several months - finally stayed on - code read 'injector problem". Shop installed new injector - did not solve problem - very rough running. Then installed 5 other new injectors - still running very rough. The car is old - but only 90K miles on it - I am original owner. ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [April 5, 2010, 10:09pm UTC](https://community.cartalk.com/t/injector-problem/47015/2 "2010-04-05T22:09:49Z")
Instead of replacing them they should have tested them. If they don’t know how to do that, find another shop. ---
**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\ **Post date:** [April 5, 2010, 10:18pm UTC](https://community.cartalk.com/t/injector-problem/47015/3 "2010-04-05T22:18:33Z")
Have they - by chance - checked the wiring harness/power supply to the injector(s)? A code that points to an injector does not mean to replace the injector. It means to diagnose a problem - sometimes this would mean a new injector. Sometimes it could just mean a frayed wire. Perhaps you need a new shop? ---
**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\ **Post date:** [April 5, 2010, 10:26pm UTC](https://community.cartalk.com/t/injector-problem/47015/4 "2010-04-05T22:26:04Z")
Can you post the actual code?? Oh, wait 1994…That makes code reading and diagnosis much more difficult…