# 1989 z24 **URL:** \ **Category:** Power/Fuel\ **Tags:** gasoline\ **Created:** [May 26, 2008, 6:47pm UTC](https://community.cartalk.com/t/1989-z24/14482 "2008-05-26T18:47:24Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![miller2008](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@miller2008](https://community.cartalk.com/u/miller2008)\ **Post date:** [May 26, 2008, 6:47pm UTC](https://community.cartalk.com/t/1989-z24/14482/1 "2008-05-26T18:47:24Z")
My 1989 Z24 will not run on reg. gas, i have to use premium for it to run and not spit and sputter. what would cause this? ---
**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\ **Post date:** [May 26, 2008, 6:55pm UTC](https://community.cartalk.com/t/1989-z24/14482/2 "2008-05-26T18:55:43Z")
You probably have severe timing issues, and need a full tune-up. This includes checking the coil and replacing distributor cap and rotor, ignition wires, and spark plugs. ---
**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\ **Post date:** [May 26, 2008, 8:30pm UTC](https://community.cartalk.com/t/1989-z24/14482/3 "2008-05-26T20:30:48Z")
I would follow Busted’s advice and have a compression test. It is possible you have a heavy carbon build up and may need that addressed. ---
**Author:** ![miller2008](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@miller2008](https://community.cartalk.com/u/miller2008)\ **Post date:** [March 2, 2009, 9:30pm UTC](https://community.cartalk.com/t/1989-z24/14482/4 "2009-03-02T21:30:04Z")
i think i finally found it. it stopped running like this after i diconnected the throttle position sensor. but i have another question. what would cause an ignition coil to burn out twice in two weeks