
1998 Ford F-150 Lariat 4.6L MIL Lamp on
Ran KOER test with vacuum gauge tee in, egr works, 6in of vacuum to the egr valve, engine runs rough during test, doesn't stall. Sets cdoe p1408 witch is KOER test failed for egr flow test failed, same as p0401. Went thru the pinpoint testing for this code and...
FIX posted 10/20/2017
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Message Closed w/FIX
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VIN | 1FTZX1761W |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0401 | EGR System Insufficient Flow Detected |
Message Closed w/FIX
Vehicle Data
1998 Ford F-150 Lariat
VIN | 1FTZX1761W |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0401 | EGR System Insufficient Flow Detected |