So I have searched and read numerous posts on this forum and others and still cannot solve my issue.
2002 Honda 225, 1490 hrs, compression is 190-205 all cylinders, all filters new, new injectors, new fuel pressure regulator, fuel pressure 46 psi, new IAC, new IAT, new HO2 sensor, new ZFR6FIX-11 plugs, leak-down test was good. Upgrade to the exhaust tubes was done back in '06, new t-stats in '10.
The engine has a miss at idle(runs rough) and reving in neutral the miss(sometimes a pop) continues.* The engine will rev, have taken to 4k rpm in neutral.* Do not notice the miss when the engine is running under load, doesn't mean that it isn't there.* Sometimes when reving the engine, when I bring it up to say 3k rpms and try to hold, the rpms will drop 400-600 rpms and never reach 3k unless I advance the throttle.
The only Honda dealer here is stumped, they performed the fuel pressure test and read the codes(that is when the IAT sensor was replaced).
Also, I just noticed that the plugs that I replaced are a different stock #6441(new) vs 4095(old), both iridium plugs with similar numbers..............I do not have the original plugs that I took out.................maybe this is the culprit??
Any ideas/thoughts?
Thanks.
2002 Honda 225, 1490 hrs, compression is 190-205 all cylinders, all filters new, new injectors, new fuel pressure regulator, fuel pressure 46 psi, new IAC, new IAT, new HO2 sensor, new ZFR6FIX-11 plugs, leak-down test was good. Upgrade to the exhaust tubes was done back in '06, new t-stats in '10.
The engine has a miss at idle(runs rough) and reving in neutral the miss(sometimes a pop) continues.* The engine will rev, have taken to 4k rpm in neutral.* Do not notice the miss when the engine is running under load, doesn't mean that it isn't there.* Sometimes when reving the engine, when I bring it up to say 3k rpms and try to hold, the rpms will drop 400-600 rpms and never reach 3k unless I advance the throttle.
The only Honda dealer here is stumped, they performed the fuel pressure test and read the codes(that is when the IAT sensor was replaced).
Also, I just noticed that the plugs that I replaced are a different stock #6441(new) vs 4095(old), both iridium plugs with similar numbers..............I do not have the original plugs that I took out.................maybe this is the culprit??
Any ideas/thoughts?
Thanks.
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