ENGINE MANAGEMENT SYSTEM
- 269 -
requirements, which are mentioned below -
Control intake air flow
Control idle air flow
Sense throttle position - Provide position feedback to Engine Controller
Provide reactionary force to the throttle
2．
Handling – DOs and DONTs
THROTTLE BODY ASSEMBLY HANDLING
ACTION REASON
DO: Use care during assembly of harness to throttle
body.
Avoid terminal damage.
DO: Avoid any liquid contamination in the throttle
body area.
Ensure proper operation.
DO: Unload and install units one at a time from
packing trays.
Damage may be done to critical components.
DO: Return any dropped, damaged, or suspect
material with a tag that describes the problem.
(Only warranty cases)
Ensure fast and correct diagnosis of root
DO: Remove and discard protective caps just before
assembling mating components.
Protects system from contamination, which
can prevent proper operation.
DO: clean the by pass passage after removing
bottom cover
To ensure good idle stability
DO NOT: Use any dropped or impacted unit.
Internal damage may have occurred o
emissions settings may have been upset.
DO NOT: Store units without protective caps in place. Contamination may impair correct operation.
DO NOT: Ship or store near saltwater without
protection.
Corrosion buildup may impact prope
operation.
DO NOT: Exposed to environmental conditions
(Moisture) prior to complete vehicle
installation.
Corrosion buildup may impact prope
operation.
DO NOT: Apply any voltage other than system
voltage for testing.
Damage could occur.
DO NOT: Apply excessive band clamp loading Damage could occur.
DO NOT: Remove packing in a way that allows
contact between parts.
Minimum air leakage could be affected
and/or other damage could occur.
DO NOT: Release the throttle cam abruptly from any
position without the throttle linkage
attached.
Damage could occur.
DO NOT: Let the by pass holes be blocked by dirt or
foreign particles.
This could effect idle stability
DO NOT: Rake, stage, or handle parts in a manner
that allows contact between parts.
Damage will occur.
To Next Page
Loading...
