# Jitter bug **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** corolla, ignition, toyota\ **Created:** [August 9, 2009, 3:57am UTC](https://community.cartalk.com/t/jitter-bug/34730 "2009-08-09T03:57:20Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Andy\_Toyota](https://avatars.discourse-cdn.com/v4/letter/a/57b2e6/32.png) [@Andy\_Toyota](https://community.cartalk.com/u/Andy_Toyota)\ **Post date:** [August 9, 2009, 3:57am UTC](https://community.cartalk.com/t/jitter-bug/34730/1 "2009-08-09T03:57:20Z")
I have a 1981 toyota corolla motor in my jitter bug (home made tractor). It stopped all of a sudden when driving and has not started since. I believe that it is the ignition control module. Is there a way I can by pass this so I do not have to buy a new one which are very expensive. ---
**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\ **Post date:** [August 9, 2009, 7:05am UTC](https://community.cartalk.com/t/jitter-bug/34730/2 "2009-08-09T07:05:15Z")
By-pass and then what for ignition control? if you don’t want to go back to breaker points (thats if you can find a breaker point distributor) you must replace the module. Have you followed the chart that diagnosis ignition module failure? are you sure its the module? got spark? how do you know? ---
**Author:** ![Andy\_Toyota](https://avatars.discourse-cdn.com/v4/letter/a/57b2e6/32.png) [@Andy\_Toyota](https://community.cartalk.com/u/Andy_Toyota)\ **Post date:** [August 9, 2009, 12:39pm UTC](https://community.cartalk.com/t/jitter-bug/34730/3 "2009-08-09T12:39:56Z")
I do not have any spark comming from the coil. Tried a differant coil and still no spark. What chart that diagnosis the module? Thanks for you reply. ---
**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\ **Post date:** [August 9, 2009, 4:47pm UTC](https://community.cartalk.com/t/jitter-bug/34730/4 "2009-08-09T16:47:12Z")
In many manuals there is a small 5 to 7 step test procedure for ignition modules. First step is to determine if correct DC voltages and grounds are present. have you priced a module? This is not like you are replacing a engine control computer. A ignition control module for GM HEI ignition can be as little as $20.00. Price one out so you know for sure. ---
**Author:** ![Andy\_Toyota](https://avatars.discourse-cdn.com/v4/letter/a/57b2e6/32.png) [@Andy\_Toyota](https://community.cartalk.com/u/Andy_Toyota)\ **Post date:** [August 9, 2009, 6:40pm UTC](https://community.cartalk.com/t/jitter-bug/34730/5 "2009-08-09T18:40:36Z")
The modules that I have located are all from supply houses and cost $350.00 plus. Have tried many salvage yards but no one seems to have older cars these days.