Hello fellow Accordions!
I’m stumped here and am asking for some direction. I have a 2000 Accord with the 2.3 Lt 4 cylinder engine. Recently I was getting an intermittent misfire while driving. The CEL came on and running a scan, it came back with the following codes; P0300, P0301, P0303, P0304 and P1381. Plugs were replaced @ 10k ago and looked fine when I took them out so I cleaned and regapped them. I replaced the cap and the rotor a week ago. Also looked on the forums for help with the P1381 code, I tested the resistance on the 4 wire connector to the distributor and found 2 of the terminals had a direct short to ground. I thought Great! This must be the fault!! I found the exact
same distributor and my local Pick n Pull. Having brought my Fluke tester with me, I performed the same test on the ‘new’ distributor and found no direct shorts and the proper resistance between 2 of the terminals. (Forget which terms they were and what the value was). I also had an alternator replaced a year ago and took it back under warranty and requested a new one thinking if the diodes were bad, I’d have that base covered as well. So with a new cap and rotor, new alternator and distributor, there are no changes to the performance of the car except it has NO acceleration at all now over 1500 rpms. It sounds great at idle, doesn’t skip a beat. And no CEL!!
Where do I go from here??
Any insight is greatly appreciated!!
Thanks!!

Bill M
2000 Accord LX
2.3 VTEC 4 cyl
Auto Trans

 

Do you have a scanner that can read live data from the PCM?

 

Thanks for the reply PAhonda! Yes
I do have a scanner and it says it has a Live Data function. How shall I proceed? Assume just hook it up to the OBDII port and hit ‘Live Data’, will let you know what I find?!?

 

Take a look at your long and short term fuel trims when the engine is warmed up at idle. Increase engine rpms to ~1500 to 2000 and hold.

Fuel trims jump around a bit, so let us know the values for the short and long at idle and at high rpm.