Manual

SECTION 5 Appendices

APPENDIX A TROUB LES HOOTING

This Appendix is devoted to trouble shooting problems that may occur during installation of

the F10 ECU. To use this Appendix, find the symptom or symptoms from the list below that

best match the problem and then follow the checklist for possible solutions.

A.1 Overview

Control Program Problems

• The Haltech Programming Software will not load up

• The Haltech Programming Software will not op erate in ONLINE mode.

• The Engine Data Page is displaying unusual sensor readings

Starting Problems

• Fuel Pump does not prime when ignition switched on.

• The engine makes no attempt to start

Idling Problems

• The engine will not idle when cold

• The engine idles too slow

• The engine idles too fast

• The en gine sur ges at idle

Light Throttle and Cruising Problems

• En gin e will not run at light throttle

Full Power Pro blems

• Engine dies under full throttle

• Engine surges under full throttle

• En gin e lacks p ower at full throttle

Throttle Response Problems

• Poor throttle response

• Poor throttle response when cold

Cold running problems

• Engine runs poorly when cold

Fuel Economy problems

• Poor fuel economy - city cycle

• Poor fuel economy - Highway cycle