I have a 98 Honda Accord v6 3.0. I just cleaned the egr valve and passages, changed distributor cap and rotor, valve cover gaskets, spark plugs and o2 sensor and now i am getting a p1399, 133, 303, and 1297 trouble codes. someone said check the vaccum lines for a few of the codes. where are they located?

SOURCE: 1992 Honda Accord LX won't start - ignition problems

I would remove the distributor cap and crank the engine over . If the rotor does not turn , then you need to replace the timing belt. The timing belt needs to be replaced every 60 K. If the rotor turns then make sure you have spark to a spark plug. Run a compression test on each cylinder. The basics to run are compression, spark, fuel and timing.

Curtis Miller

• 5 Answers
• Posted on Apr 29, 2009

SOURCE: i have a 91 honda accord lx starts fine runs good

It may be the O2 sensor. I know it's not the fuel filter, spark plugs, spark plug wires, Vehicle Speed Sensor, Dis. cap, or TCM.

SOURCE: 1995 honda civic d15b7 cranks but wont start. new

Are you sure you have correct timing? its definetly a fule problem, if timing is good then turn your key to the on position and try to listin for the fule pump to prime. While the key is in on position go to fuel rail, there is a valve on fule rail called sharader valve. Get a small screw driver and press valve in to check if car has fule pressure. if pressure is present then it is incorrect timing or possible bad cam sensor.

SOURCE: 1996 Honda Accord Rough Idle Even After tune up

Perform a valve clearance inspection and adjust if necessary. Tight or sticking valves will cause a misfire or rough running concern. Note: Perform valve adjustment when the engine is stone cold. 4cyl: INT 0.26mm EXH: 0.30mm (V6 engine are hydraulic and no adjust necessary.) Also check for a sticking or stuck open EGR valve. For diagnostic purposes only: Remove the EGR valve. Place a business card over the EGR passage and bolt the EGR valve back on. This plugs the EGR ports and if the misfire goes away the EGR valve is partially stuck open and is defective.
Check for low fuel pressure. Check for low compression. Check cam timing. Check for a weak ignition coil. Also don't over look the possibility of worn or broken engine mounts which cause excessive engine movement and engine vibration. -hope this helps

SOURCE: Check engine light

Reset the computer.