Last post on Jun 16, 2013 at 11:43 AM
You are in the Mazda Protege
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Mazda Protege5, Hatchback, Sedan
#1415 of 1419 Reoccuring check engine light, code 401 2000 ES
Mar 25, 2012 (2:32 pm)
Can someone help with an answer or post to a message with suggestions.
Have a 2000 ES, standard transmission with 140,000. have been fixing various emissions problems over the last year-18 months. Currently have code 401 reoccur- have replace EGR valve, boost sensor, and cleaned off deposits. Check engine light still comes on.
is this a common problem?
sorry if posted in wrong place.
#1416 of 1419 Re: Reoccuring check engine light, code 401 2000 ES [sadson]
Mar 26, 2012 (8:48 am)
There is a terrific site (www.obd-codes.com) that explains the OBD2 codes: P0401 explained
#1418 of 1419 dragging while driving
Oct 22, 2012 (5:40 pm)
can anyone help me identify my mazda protege 5 problem this morning while i was driving up the highway to work it started making a dragging sound and then it stop and then it started again...... it sounds like onnnnnnn....and i dont know what it can be please can any one help me with the dragging staling sound the car drive good other than that but in addition my radiator is leaking or cracked but not overheating.......
#1419 of 1419 P5 gutless under load; no error code
Jun 16, 2013 (11:43 am)
2002 Protege5, 5-spd, 70K miles, original owner. P5 now has trouble going up hills, especially with a passenger or two, far worse than normal. Performance NOT under load is fine. I thought it might be a plugs/wires/coils problem and was about to change them when a mechanic said if it were the cause, I'd have seen an error code. He suggested the fabric over the fuel pump might need cleaning, as the computer doesn't check fuel pressure. Per his suggestion, I dumped in a bottle of FI cleaner: no help. Three questions: 1) Could a bad plug, wire or coil be the culprit without the computer knowing? Might the wires or coil be less efficient after 11 years, but not so much the computer would notice? 2) Could a clogged filter-sock be the problem without triggering an error? 3) Could something else be causing this problem? I'm confident I can change the plugs/wires/coils, but hesitate to mess with the fuel filter, even with the fine instructions pointed to in an earlier post here (one in which a computer error had been generated). Thanks for any advice!