Any help will be great. I went to Advance Auto and had a guy read my computer and I got several trouble codes. First I will explain the symptoms. A) when I drive I get a very accrid smelling odor after I park.
B) when I try and accellerate, the RPMS shoot up as if I wasnt in gear, but I am, and I slowly accellerate. Its a weird thing to explain. Its almost as if the gears dont catch. but I know they do, cause i can still go.
C) sometimes, while accellerating, the car will start to lurch, and bog down...If i turn it off and on again, the car usually runs with out doing that, however, problem B) is a constant. Both warm and cold weather.

Now, trouble codes.

P1491
P1259
P0171
P0420
P0401

Do all of these "symptom codes" lead anyone to a specific problem (that I can try and fix without buying a new car?)

 

Bogus post 79 accords don't have OBD2 codes

 

umm, its a 1999 honda accord and it does have codes. i am sorry for not stating that earlier. not a BOGUS POST

 

I can't help you with the codes, but I can offer you a wild guess. If your car is a manual, might you have a bad clutch? -- The smell, the jerking, etc.

 

P1491 - EGR valve lift insufficient
Most often caused by a broken/cracked vacuum line.

P1259 - VTEC system malfunction
Generally, this code is thrown either from low oil pressure (check your oil level) or the VTEC oil pressure sensor.

P0171 - System Adaptive too lean

P0420 - Catalyst system efficiency below threshold
Would be caused by a bad catalytic converter, or sometimes a bad secondary O2 sensor. Most likely a bad cat since you have "very acrid smelling odor", but the odor could also be a burning clutch like gulfview mentioned.

P0401 - EGR insufficient flow detected
There are only two causes for this code, a blocked or bad Exhaust Gas Recirculation (EGR) valve or blocked EGR port in the intake manifold.

Codes P0401 and P1491 are probably related in this situation.

Problem "C" is probably directly related to running lean. For some reason, I'm drawing a blank on causes. Problem "A" could be caused by a bad cat (which you probably have due to code P0420, but could also be from a burning clutch. Problem "B" (and possibly "A") is probably clutch issue. Either your clutch is completely worn or is not fully engaging.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondadude &raquo;</TD></TR><TR><TD CLASS="quote">Bogus post 79 accords don't have OBD2 codes</TD></TR></TABLE> Wasted bandwith might be George's justification?