EVAP System - MIL ON/Multiple DTC's Set/No Start
Article No.96-6-8
03/11/96
^ MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED - DIAGNOSTIC TROUBLE CODE (DTC) P0443, P1443, P1444, AND P1445 MAY BE STORED IN MEMORY - 2.3L, 3.0L AND 4.0L ENGINES
^ NO START - MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION - DIAGNOSTIC TROUBLE CODE (DTC) P0443, P1443 MAY BE STORED IN MEMORY - 2.3L, 3.0L AND 4.0L ENGINES
^ LAMP - MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED - DIAGNOSTIC TROUBLE CODE (DTC) P0443, P1443, P1444, AND P1445 MAY BE STORED IN MEMORY - 2.3L, 3.0L AND 4.0L ENGINES
LIGHT TRUCK:
1995-96 RANGER
ISSUE:
The Malfunction Indicator Lamp (MIL) may be illuminated with a possibility of a no start condition on some vehicles. There may also be the following Diagnostic Trouble Codes (DTCs) stored in memory: P0443, P1443, P1444, P1445.
ACTION:
Use the Quick Check Diagnostic Chart to determine the correct action.
SERVICE PROCEDURE
1. Visually inspect the fuel vapor return hoses, repair, replace or reconnect as required.
2. Check the canister purge wiring harness that connects the purge solenoid for damage from rubbing against the power steering bracket.
3. If damaged, replace the connector assembly. Do not repair or replace the wire terminals in the connector assembly. Use Service Kit -14289- and follow Repair Procedure # 2 listed in the Instruction Sheet included in the kit to splice the wiring pigtails.
4. Fasten wire assembly to the fender apron routed away from the power steering pump assembly. Use the wiring routing template supplied in the kit. Refer to Figure 1.
5. If the terminals in the canister purge flow sensor connector are damaged or defective, replace the connector. Use Service kit F67Z-14289-CA and follow Repair Procedure # 1 in the Instruction Sheet included in the kit.
6. If the fuel pump fuse is blown, check the 20-amp fuse (fuel system/anti-theft) and the fuel pump relay in the engine compartment fuse/relay box. Replace as required.
7. If the concern still exists, perform the diagnostic procedures found in the 1995/96 Powertrain Control/Emissions Diagnosis (PC/ED) Service Manual CD-ROM, December, 1995 update and the following instructional changes that were made since the December CD-ROM publication.
1995 PC/ED MANUAL CHANGES
^ PPT Step HW12; Yes and No action to take after PCM reset - If Code P1443 is still present, GO to Pinpoint Test Step HW20.
^ PPT Step HW13 is actually suppose to be HW15.
^ PPT Step HW22; Is the voltage less than 0.28 volts? Not 0.14 volts.
^ PPT Step HW27; A fault is indicated by a sudden change in voltage (less than 0.28 volts).
1996 PC/ED MANUAL CHANGES
^ PPT HW, under REMEMBER; EVAP canister purge (CANP) solenoid - Purge flow sensor assembly (90987).
^ PPT Step HW7; Pull moderately on the PF SIG, VPWR and PWR GRD wires at the PF sensor vehicle harness connector.
^ PPT Steps HW16 and HW26; Yes action to take after connecting hoses - Complete PCM reset to clear DTC's (refer to Section 2A Powertrain Control Module (PCM) reset). Rerun Quick Test. If DTC P1443 is still present GO to Pinpoint Test Step HWi9.
^ PPT Step HW27; Pull moderately on the VPWR wire at the PF sensor vehicle harness connector - Key On, Engine Running - Note: PF sensor input to the PCM is 0.40 to 4.80 volts - Is PF PID voltage less than 0.40 volts?
^ PPT Step HW27; Yes action to take - For PF PID voltage between 0.20 and 0.40 volts, GO to Pinpoint Test Step HW8. For PF PID voltage less than 0.20 volts, GO to Pinpoint Test Step HW28.
^ PPT Step HW31; Disconnect PF sensor - Inspect for pushed out or bent PF SIG and PWR GRD pins on the mating connectors. Pull moderately on the PF SIG and PWR GRD wires sensor vehicle harness connector. Key On, Engine Running - Note: PF sensor input to the PCM is 0.40 to 4.80 volts.
8. If either the canister purge solenoid or the purge flow sensor has to be replaced, replace them as an assembly (hose, purge valve and flow sensor). Refer to Figure 2.
PART NUMBER PART NAME
F67Z-14289-CA Canister Purge Service Kit
F67Z-14289-DA Canister Purge Service Kit
F57Z-9C987-AB Canister Purge Solenoid/Flow Sensor
Assembly - 2.3L
F57Z-9C987-CA Canister Purge Solenoid/Flow Sensor
Assembly - 3.0L
F57Z-9C87-BA Canister Purge Solenoid/Flow Sensor
Assembly - 4.0L
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
960608A Install Either Canister 0.6 Hr.
Purge Service Kit
960608B Install Both Canister Purge 0.9 Hr.
Service Kits
960608C Additional Time To 0.3 Hr.
Replace Fuse And/Or
Relay
960608D Additional Time To 0.2 Hr.
Replace Purge Assembly
DEALER CODING
CONDITION
BASIC PART NO. CODE
90987 97
OASIS CODES: 203000, 203200, 206000, 404000, 490000, 603300, 698298