× 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
1996 Geo Tracker 1.6L MIL Lamp on
Posted to GM Driveability on 6/3/2000 3 Replies

Hello fellow techs. The above vehicle came in with the MIL lamp illuminated and code PO400 in memory. Both solenoids, the vacuum circuits, EGR valve, MAP sensor and BP transducer appear to be functioning OK. The EGR valve does open and the flow rate is good.

...

3 Replies Received (View Replies)

  Related Documents & Media  1996 Geo Tracker

 
Message Closed w/FIX

car Vehicle Data

1996 Geo Tracker

VIN 2CNBJ1368T
Engine1.6 L / 4 cyl
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways
Misc.4WD

Trouble Codes

P0400Exhaust Gas Recirculation System Flow Malfunction
Message Closed w/FIX

car Vehicle Data

1996 Geo Tracker

VIN 2CNBJ1368T
Engine1.6 L / 4 cyl
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways
Misc.4WD

Trouble Codes

P0400Exhaust Gas Recirculation System Flow Malfunction