Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 61Get this manual
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1997 OFI Troubleshooting Guide (continued) Symptom 4 Engine idles fast (RPM 700) or surges Cause 4.1 TPS sensor malfunction See 2.5 Action
6.2 Low air pressure in rails 6.3 TPS sensor mal