Engine rattle?Remove the metal heat shield at the front/top of the exhaust and check the exhaust manifold for a crack.They all crack at some point and do rattle when the crack becomes large.
SOURCE: 2000 Honda Accord EGR Valve Error P0401
Jason,
-after you change the part you have to reset/clear the code
-this can be done by either:
(1) using the OBD2 code reader that Autozone used OR since option 2 (below) is very quick
(2) disconnecting the battery for about 30 seconds (this will delete
all codes/radio presets/etc) but it will also clear the 'check engine'
code
-this is what I do AFTER i write down my radio station presets :)
-hopefully the new EGR valve resolves your issue after you CLEAR the code
...but that code just means a an insufficient amount of Exhaust Gas
recirculation (pressure difference) used to keep the emissions in check
-if it comes back, then there are a few other fixes to try also
-let me know if you need further assistance
-please remember to rate me `fix-ya`if it works
thanks
SOURCE: 91 honda civic dx. Starts, runs for a few seconds then stalls
Try pounding on the gas tank with a rubber mallet or similar tool. (careful not to dent the tank) Try starting it. If it runs, replace the fuel pump (it's nfg). I've diagnosed numerous fuel pumps this way. Remember the pump needs to be replaced, if you drive it, you don't know when it'll fail for good. Hope this helps. Please post the results.
SOURCE: How do you clean the EGR valve on a 99' Honda Civic?
Pull vacuum on egr valve with engine idling and see if engine stumbles and tries to die until vacuum is released. If this DOES NOT happen the egr exhaust passage is plugged will need to remove egr valve assembly and remove carbon from passage into cylinder head.
SOURCE: Very high fuel consumption on 2002 Honda Odyssey
transmission slipping dragging brakes.timing off worn timing belt .bad spark plugs + wires +coil.defected valves and worn cam shaft.use scanner to check oxygen sensor. run engine 5 minutes look at scanner . should read closed loop . if read open loop replace oxygen sensor.
Knock Sensor Circuit
Malfunction
What does that mean?
A knock sensor tells the engine
computer when one or more of your engine's cylinders are "knocking", that is,
exploding the air/fuel mixture in a way that delivers less power and can
be damaging to the engine if prolonged. The computer uses this information to
tune the engine so that it doesn't knock. If your knock sensor
wasn't operating properly, so that it was always indicating a knock, the engine
computer's response may have been to change the ignition
timing on your engine. Knock sensors generally bolt into or thread into the
engine block. This P0325 code
may show up intermittently or the Service Engine light may be lit constantly.
Other knock sensor related DTC codes include P0330.
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Symptoms
You may notice drivability problems
including a lack of power and perhaps some hesitation. There may also be other
symptoms.
Causes
A code P0325 most likely means one or more of the following has
happened:
Sources: W. Farmer - Nissan
P0400 - Exhaust Gas Recirculation Flow Malfunction OBD-II Trouble Code Technical Description
Exhaust Gas Recirculation Flow
Malfunction
What does that mean?
The exhaust gas recirculation (EGR) valve
is vacuum controlled valve that regulates the amount of exhaust gases that
re-enter the cylinders. The powertrain control module (PCM) determines how much
based on engine load,
temp, and other conditions. If the PCM detects that the amount of exhaust gases
entering the cylinder were insufficient or non-existent, this code is set.
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Symptoms
No symptoms will likely be noticed by the
driver other
than the MIL (malfunction indicator lamp). However, non visible symptoms will be
increased combustion temperature and increased Nox emissions.
Causes
A code P0400 may mean that one or more of
the following has happened:
Since EGR valve designs are different, no
one test will suffice:
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