× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0402 Diagnostic Trouble Code Discussion for July 2004

EGRC-BPT Valve Function

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0402
Help Request Posted
1997 Ford Thunderbird LX 3.8L MIL Lamp on VIN: 1FALP6245V
P0402: excessive egr flow. ... flow code. diagnosed as plugged egr ports. customer declined and took the car somewhere else. now it returns with a new motorcraft egr, dpfe sensor and clean ports along with a p0402 "excessive flow" code. the code is reaccuring on test drives but ...
July 15, 2004
1996 Lexus ES300 3.0L MIL Lamp on VIN: JT8BF12G6T
P0402: Excessive EGR Flow Detected. ... on this one car was in with a P0402 excessive egr detected. cleared codes and sent customer out. code reset in a few days. no running problems have been noticed customer says light comes on shortly after starting engine cole in am. any help will be greatly...
July 20, 2004
1994 Toyota Camry LE 3.0L MIL Lamp on VIN: 4T1GK12W2R
P0402: excessive exhaust gas flow. ... code, replaced sensor and sent customer on his way (toyota o2). About a week later customer returned with mil light on again. This time we retieved a p0402 code, excessive exhaust gas flow. Egr valve working fine, stalls when vaccum applied and seats great...
July 23, 2004
1999 Mazda Miata 10th Anniversary 1.8L Excessive Emissions, MIL Lamp on VIN: JM1NB3535X
P0402: egr excessivce gas flow. ... testing egr system. we have tested boost sensor and selenoid, both seem to be working ok, the boost sensor has 5volts on the green/red and 4.25 on the grey. the selenoid when we grounded the grey/bk lost the vacuum to the boost sensor, we had 19 in of vacu...
July 28, 2004
1998 Ford F-150 4.6L Misfire, MIL Lamp on VIN: 1FTZX17246
P0402: excessive egr flow. truck came in with a check engine light & a miss.code po402 excessive egr flow & po304 # 4 cylinder misfire.replace all plugs and plug wire set. customer wanted that done. replace egr valve, it was all carbon up.voltage on dpfe was high, 4.86v all the ...
July 29, 2004