LEMON Manuals
: Even more car manuals for everyone: 1960-2025
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1990
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Laser RS, 1.8 T, Standard
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Repair and Diagnosis
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Engine Controls - Tests W/O Codes
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Rough Idle
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Rough Idle
Check vehicle speed sensor
Check fuel pressure
Check for vacuum leak
Malfunctioning electronic control unit
Check for open or short in wiring harness and/or poor connections