When checking MAP sensor visual inspection is necessary.
Thoroughly check MAP for loose, poor connection, bent, corrosion, contamination, deterioration,or damage.
Is MAPS OK?
YES
Go to "Monitor Scantool data TPS"
NO
Clean or Repair as necessary and go to "Verification of Vehicle Repair"
Check air cleaner for dirt, blockage, or damage.
Check entire air intake system for leaks or blockages such as :
▶ Throttle body
▶ PCV valve
▶ Intake manifold
▶ Gasket beween intake manifold and surge tank
▶ Seals beween intake manifold and fule injectors
▶ Seal beween surge tank and PCV pipe
Is entire air intake system okay?
YES
Temporarily install a known good MAP and check for proper operatiuon.
if problem is corrected, replace MAP.
NO
Repair or replace as necessary and go to "Verification of Vehicle Repair"