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1991 Mazda RX-7 Turbo 1.3L Poor Idle Quality, Misfire, MIL Lamp on, NO TRAILING SPARK
This vehicle will loose the trailing ignitor approximately 15-45 seconds after start up, at this time spark is lost the mil illuminates and the tach stops functioning. back probing at the ecm shows no signal output to drive the [...] causing the loss of comfir...
FIX posted 2/24/2001
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Related Documents & Media 
| VIN | JM1FC3529M |
| Engine | 1.3 L / 2 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI |
| Emissions | CA, OBD1 |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp on, No Trailing Spark |
| Occurs | Cold, Intermittently, 15 Sec After Start |
| Misc. | Convertable |
Trouble Codes
| 12 | no rpm signal |
Message Closed w/FIX
Vehicle Data
1991 Mazda RX-7 Turbo
| VIN | JM1FC3529M |
| Engine | 1.3 L / 2 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI |
| Emissions | CA, OBD1 |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp on, No Trailing Spark |
| Occurs | Cold, Intermittently, 15 Sec After Start |
| Misc. | Convertable |
Trouble Codes
| 12 | no rpm signal |
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