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#1
09-10-2004, 04:12 PM
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98 Ranger With P1121 Code
Got P1121 Code the other day. Says: Man. Control Fuel Air Metering.
Anyone have any ideas where to start? IAC? 
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#2
09-13-2004, 12:17 PM
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Re: 98 Ranger With P1121 Code
do you have any symptoms? it could be mass air flow sensor, air temp sensor,oxygen sensors,everything works off the sensor readings.
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#3
09-13-2004, 12:21 PM
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Re: 98 Ranger With P1121 Code
here are the codes. i cant find a 1121 code 96–01
OBD2 MIL P0000 0505 No Failures P0100 0102 MAF Sensor Circuit Malfunction P0105 0803 MAP/BARO Sensor Circuit Malfunction P0110 0401 IAT Sensor Circuit P0115 0103 ECT Sensor Circuit Malfunction P0120 0403 TP Sensor Circuit Malfunction P0125 0908 Insufficient Coolant Temperature For Closed Loop Control P0130 0303 HO2S Circuit Malfunction Bank 1 Sensor 1 P0131 0411 HO2S Bank 1 Sensor 1 Lean P0132 0410 HO2S Bank 1 Sensor 1 Rich P0133 0409 HO2S Bank 1 Sensor 1 P0134 0412 HO2S Bank 1 Sensor 1 P0135 0901 HO2S Heater Circuit Malfunction Bank 1 Sensor 1 P0136 0707 HO2S Circuit Malfunction Bank 1 Sensor 2 P0137 0511 HO2S Bank 1 Sensor 2 Lean P0138 0510 HO2S Bank 1 Sensor 2 Rich P0139 0707 HO2S Bank 1 Sensor 2 Response P0140 0512 HO2S Bank 1 Sensor 2 P0141 0902 HO2S Heater Circuit Malfunction Bank 1 Sensor 2 P0171 0115 Fuel System Too Lean P0172 0114 Fuel System Too Rich P0180 0402 Fuel Temperature Sensor Circuit Malfunction P0300 0701 Random/Multiple Cylinder Misfire Detected P0301 0608 Cylinder No. 1 Misfire Detected P0302 0607 Cylinder No. 2 Misfire Detected P0303 0606 Cylinder No. 3 Misfire Detected P0304 0605 Cylinder No. 4 Misfire Detected P0305 0604 Cylinder No. 5 Misfire Detected P0306 0603 Cylinder No. 6 Misfire Detected P0325 0304 Knock Sensor Circuit Malfunction P0335 0802 CKP Sensor Circuit Malfunction P0340 0101 CMP Sensor Circuit Malfunction P0400 0302 EGR Flow Malfunction P0402 0306 EGR Flow Excessive P0420 0702 Catalyst System Efficiency Below Threshold Bank 1 P0440 0705 EVAP System Leak Detected, Small Leak P0443 1008 EVAP System Purge Volume Control Valve Circuit Malfunction P0446 0903 EVAP System Vent Control Circuit Malfunction P0450 0704 EVAP System Pressure Sensor Malfunction P0500 0104 VSS Malfunction P0505 0205 Idle Control System Malfunction P0510 0203 Closed TP Sensor Malfunction P6000 0504 Serial Communication Link Malfunction P0605 0301 PCM ROM Error P0705 1101 Transmission Range Selector Circuit Malfunction P0710 1208 Transmission Fluid Temperature Circuit Malfunction P0720 1102 Output Speed Sensor Circuit Malfunction P0725 1207 Engine Speed Input Circuit Malfunction P0731 1103 Gear 1 Improper Ratio P0732 1104 Gear 2 Improper Ratio P0733 1105 Gear 3 Improper Ratio P0734 1106 Gear 4 Improper Ratio P0740 1204 Torque Converter Clutch Circuit Malfunction P0744 1107 Torque Converter Clutch Solenoid Malfunction P0745 1205 Pressure Control Solenoid Malfunction P0750 1108 Shift Solenoid No. 1 Malfunction P0755 1201 Shift Solenoid No. 2 Malfunction P1105 1302 MAP/BARO Solenoid Circuit Malfunction P1148 0307 Closed Loop Control Malfunction P1320 0201 Distributor Signal Interrupt P1336 0905 CKP Sensor P1400 1005 DPFE EGR Sensor Circuit Low Voltage Detected P1401 0305 EGR Temperature Sensor P1402 0514 EGR System High Flow Rate P1440 0213 EVAP System Leak Detected, Small Leak P1444 0214 EVAP System Volume Control Valve P1446 0215 EVAP System Vent Control Closed P1447 0111 EVAP System Purge Flow Monitor P1448 0309 EVAP System Vent Control Open P1490 0801 EVAP System Vacuum Cut Bypass Solenoid Circuit Malfunction P1491 0311 EVAP System Vacuum Cut Bypass Solenoid Malfunction P1605 0804 A/T Diagnostic Communication Link P1705 1206 TP Sensor (A/T) P1706 1003 Park/Neutral Switch Not Switching P1760 1203 Overrun Clutch Solenoid Valve P1900 1308 Cooling Fan Banner ads/Advertising | Logo Store | Disclaimer Bruce's Laptops | Technical Index | Help ©Copyright 2001/2002/2003 batauto.com, BAT Auto Technical. All Rights
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#4
09-13-2004, 08:47 PM
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Thanks for your reply. I do not have any symptoms except for the truck stalling once at a red light, started right back up and runs fine. No hesitation mis-fire ect.....Just put new plugs, wires, fuel filter, TPS, and PCV in it.
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