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On my 98 ford e350 van the codes p1401 and p1409 came up what do those codes mean

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Posted on Jan 02, 2017

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SOURCE: my code reader says p1401 ford exscape

p 1401 is a code for differential pressure feedback egr circuit high input there is a small square sensor on the engine with a vacuum line here is some info Exhaust Gas Recirculation (EGR) System Monitor” Differential Pressure Feedback EGR
The Differential Pressure Feedback EGR System Monitor is an on-board strategy designed to test the integrity and flow characteristics of the EGR system. The monitor is activated during EGR system operation and after certain base engine conditions are satisfied. Input from the ECT, IAT, TP and CKP sensors is required to activate the EGR System Monitor. Once activated, the EGR System Monitor will perform each of the tests described below during the engine modes and conditions indicated. Some of the EGR System Monitor tests are also performed during on demand self-test.

The Differential Pressure Feedback EGR sensor and circuit are continuously tested for opens and shorts. The monitor looks for the Differential Pressure Feedback EGR circuit voltage to exceed the maximum or minimum allowable limits.

The DTCs associated with this test are DTCs P1400 and P1401.
The EGR Vacuum Regulator solenoid is continuously tested for opens and shorts. The monitor looks for an EGR Vacuum Regulator circuit voltage that is inconsistent with the EGR Vacuum Regulator circuit commanded output state.

Posted on Jul 26, 2010

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98 ford E350 clubwaggon van when it rains transmission shifts hard sounds like it slips and speedometer stops working


It may be hydroplaning in the rain. I had a '95 Windstar that hydroplaned in heavy rain. Speedometer went crazy.

Jul 04, 2017 | Ford E350 Cars & Trucks

1 Answer

What are codes p1401 p0302 p0305 p1409 p0301


P1401 Differential Press Feedback EGR Circuit High Input
Your EGR port is plugged. Replace your EGR valve, and clean the ports
A code P0302 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer
  • A code P0305 may mean that one or more of the following has happened:
    • Faulty spark plug or wire
    • Faulty coil (pack)
    • Faulty oxygen sensor(s)
    • Faulty fuel injector
    • Burned exhaust valve
    • Faulty catalytic converter(s)
    • Running out of fuel
    • Poor compression
    • Defective computer
    • A code P0301 may mean that one or more of the following has happened:
      • Faulty spark plug or wire
      • Faulty coil (pack)
      • Faulty oxygen sensor(s)
      • Faulty fuel injector
      • Burned exhaust valve
      • Faulty catalytic converter(s)
      • Running out of fuel
      • Poor compression
      • Defective computer
      • A code P0302 may mean that one or more of the following has happened:
        • Faulty spark plug or wire
        • Faulty coil (pack)
        • Faulty oxygen sensor(s)
        • Faulty fuel injector
        • Burned exhaust valve
        • Faulty catalytic converter(s)
        • Running out of fuel
        • Poor compression
        • Defective computer
        • p1409
        • EGR Vacuum System Leak - Read Our Article on EGR Valve Codes For Help With This Oldsmobile Check Engine Light Code

Sep 25, 2014 | Cars & Trucks

1 Answer

WHAT DOES CODE P1409 MEAN ON A 1998 FORD RANGER 3.0


P1409--EGR Vacuum Regulator Solenoid Circuit Malfunction

Dec 05, 2012 | 1998 Ford Expedition

1 Answer

What it means code p1409


The P1409 means EVR Control Circuit Malfunction.
___________________
maxiscan ms509

Sep 20, 2012 | Ford Cars & Trucks

1 Answer

Yes i have a 98 taurus i have two codes that i need to know what they are p1944 and p1401 dicscount auto said it has to do with the trans but couldn't tell me what the codes are


The P1401--EGR Sensor Circuit High Voltage Detected
I can not tell you what the problem is,without the vehicle and doing some tests.

The P1944- I don't have,but it apears to be,as you were told, trans related. Maybe an output sensor on trans?

Theses auto stores don't help much,by pulling codes and leaving you hanging.

What problems are you having? Obviously,drivability and shifting.

Apr 10, 2010 | 1998 Ford Taurus

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