Information on diagnosing and repairing a DTC trouble code P0401 which is insufficient EGR (exhaust gas recirculation) flow.

P0401 and P0402 2000 Ford Taurus The check engine light on my 2000 Ford Taurus 24 Valve DOHC V6 came on and after scanning with an OBD2 Scan Tool, I received an P0402 (excessive EGR flow).

Jan 21, 2007 · I used a scan tool and got a code for EGR insufficient flow or P0401. I REPLACE THE EGR VALVE AND GASKET (EASY) cleared the code and 40 miles later, the CEL was back.

P0404 Exhaust Gas Recirculation Circuit Range/Performance OBD-II Trouble Code Technical Description Exhaust Gas Recirculation "A" Circuit Range/Performance What does that mean? This …

How to quickly diagnose, repair, and info on symptoms and causes of a P0299 DTC code which refers to an underboost condition with the turbo or supercharger system.

P0403 Exhaust Gas Recirculation Circuit Malfunction OBD-II Trouble Code Technical Description Exhaust Gas Recirculation "A" Control Circuit What does that mean? This diagnostic trouble code …

I took it to AutoZone and the codes came back as: p0170 (fuel trim malfunction), p0401 twice (insufficient EGR flow), and p0471 (exhaust pressure sensor range/performance).

Dec 6, 2008 · p0401 for 2001 Toyota Camry by rha5242 » Sat Dec 06, 2008 6:55 pm My car is a 2001 Camry with about 85K miles. About 4500 miles ago, the engine check light came on and shortly …

Jul 14, 2016 · Re: p0401 95 crown vic by autojoe » Wed Jul 20, 2016 2:18 am could be plugged up egr intake passages.

98 Ford Explorer 5.0 P0401 P0405 P1309 Codes on a 1998 Ford Explorer, 5.0 v8, 2wd. Having a problem with misfire, most noticeable at idle, and lowered mpg. Checked for codes and originally got …