MAP Sensor - Pinpoint Test DF Manual Correction

89Ford09

Article No. 89-5A-6

EEC IV - PINPOINT TEST "DF" - MAP SENSOR GRAPH - SHOP MANUAL CORRECTION

FORD: 1989 ESCORT, MUSTANG, TEMPO, TAURUS, AND THUNDERBIRD

LINCOLN-MERCURY: 1989 TOPAZ, SABLE, COUGAR, CONTINENTAL, MARK VII, LINCOLN TOWN CAR

LIGHT TRUCK: 1989 RANGER, BRONCO, AEROSTAR, F-SERIES, ECONOLINE

ISSUE: The MAP sensor graph and data table on page 17-67 of the 1989 Engine Emissions Diagnosis Manual, Volume H is incorrect.

ACTION: If service is required, refer to this TSB for the correct graph and data. This information should be inserted into your 1989 Engine Emissions Diagnosis Manual, Volume H, Section 17-67 for future reference.

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: "INFORMATION ONLY"
OASIS CODES: 680000

1989
EEC-IV - Pinpoint Tests - All Vehicles 17-67

Manifold Absolute Pressure (MAP)/

Barometric Pressure (BP) Sensor

Pinpoint

Test

DF




MAP Sensor Graph

NOTE: MAP sensor output frequency versus manifold vacuum data is based on 30.0 in-Hg barometric pressure.
1989
17-68 EEC-IV - Pinpoint Tests - All Vehicles
Manifold Absolute Pressure (MAP)/

Barometric Pressure (BP) Sensor
Pinpoint

Test
DF



MAP/BP Sensor Graph (KOEO)

NOTE: Frequency may vary plus or minus 3 Hz from the values given due to sensor variations.