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Re: 1998 Prelude VTEC P1361 code, what's the most likely...
That code is very familiar to me. I encountered
P1361 on my 98 Civic last year. Other resources will only tell you that
it's misfiring or a problem with the ignition. However, the offical
Honda Civic service manual will tell you it's an intermittent
interruption in the top dead center circuit sensor. It is related to a
sensor in the distributor responsible for detecting TDC (top dead
center) of the spinning rod across your engine.
As your engine turns, everything from your timing belt pulleys to the
other end of your distributor must be in sync on when TDC has been
crossed for every revolution.
This precise timing allows your sparkplugs to ignite the fuel to
perform proper combustion. If timing is off because TDC cannot be
properly detected by the sensors within your distributor, you can
experience poor engine performance to stalls.
My civic ran okay after I disconnected the battery to clear the engine
light, but the engine light would return after several days. The engine
also felt sort of rough during idle and would stall on some occasions.
I tried troubleshooting the sensors but failed so I ended up simply
replacing the whole distributor. After the replacement, my civic ran
perfect, no stalls and no engine light warnings. A new distributor can
cost about $280 from your local auto parts store and is fairly easy to
replace from right under the hood - just a few bolts and screws.
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Black smoke is an indication of a rich ( overfueled ) engine. Make sure the oil level is correct as a low level will affect the VTEC operating system and will cause a variation in valve timing. I would suspect the check engine light to be on if over fueled. You may need to have the operating system parameters scanned to determine if a sensor is acting up causing this issue.
P1259 HONDA - VTEC System Malfunction Possible causes- Low engine oil pressure or level - Open or short circuit condition - Faulty VTEC oil pressure switch - Faulty VTEC solenoid When is the code detected?The P1259 is set when there is a problem in the VTEC Oil Pressure Switch circuit or VTEC Solenoid Valve circuit
Diagnostic Trouble Code P2646 has to do with your Variable Timing Electronic Control (VTEC). This is the system that adjusts your valve timing while you are driving.
The MOST COMMON cause of this code is low oil levels. In these cases, checking the engine oil level in your engine and adjusting it to the proper level will fix the problem. Also, if this is the case, you may want to consider changing your oil more often and/or repairing any leaks that have caused your oil level to be low.
Otherwise, there could be circuit failures in the VTEC solenoid or the oil passeges to the solenoid could be clogged up inside the engine. This will require diagnostics and VTEC system inspection to verify the cause.
This is an error code related to VTEC related Honda engines. I am sending you a little reading on that error code.. Best of Luck..
The Check Engine Light (CEL) is on. Trouble code P1259.
1. Locate the Variable Timing/Lift Control (VTEC) pressure switch, on the back of the cylinder block, by the oil filter.
2. The VTEC oil switch is normally closed and grounds the reference
voltage from the Engine Control Module (ECM) on the Blue/Black (BLU/BLK)
3. At approximately 4000 RPM, and when driving the vehicle, the
VTEC system should turn on. To turn the system on, the ECM energizes the
VTEC Solenoid valve and it allows oil pressure into the intake valve
rocker arms, the oil pressure opens the VTEC oil pressure switch so the
ECM can verify that VTEC did turn on correctly.
4. The code will set below 4000 RPM if the reference voltage is not
grounded. The code will set above 4000 RPM if the VTEC oil switch does
5. If the code sets at 4000 RPM or higher, the problem can be a low
oil level or pressure, or a malfunction in the VTEC assembly.
Low Engine Oil Plugged Oil Passage Insufficient Oil Pressure Plugged Oil Screen Insufficient Oil Volume Malfunctioning VTEC Oil Pressure Switch Defective VTEC Solenoid Tech Tips:
When the P1259
code sets at 4,000 RPM or higher, always verify that the engine oil
level is full.
Also, if there is an oil pressure or volume problem, always verify that
the oil pan is not pushed up and is too close to the oil pickup tube,
causing an oil volume problem. Be very careful when supporting the
engine with the oil pan.
p1259 code is manufacturer control fuel air metering,--its a VTEC malfunction,
Check the oil level in your car. Everytime I've seen this code it is because the oil level is low. VTEC works off of oil pressure and when the oil level is too low there is not enough oil pressure to push the VTEC in. My guess is you're about two quarts of oil low so it should cost you about $4.00 to fix the problem. If the oil level is correct then you'll need to take it to the dealer for diagnosis.
P1259 is a code for vtec malfunction usually cause by a bad vtec solenoid, vtec pressure sensor, low oil level, bad connection. Was oil change done? May want to check the oil level. P1166 is a code for a primary o2 sensor 1.