bduel

My little buddy is sick (berlina black '00, #7399, no mechanical mods). For a few months I've been experiencing a sudden intermittent hesitation/loss of power during cruise or soft/moderate, acceleration. If feels like hitting the rev limiter, and is sometimes that abrupt. The dealer (Long Beach Honda) has had it 3 times, and I'm getting pretty fed up. The first time, I got a "could not reproduce the problem". Then I drove with a technician and he saw what I was talking about. They cleaned the throttle bodies and injectors, but then, after talking to American Honda tech support, based on some MAP sensor (whatever the heck that is) and fuel pressure readings, gave me new injectors. They really have never been able to diagnose the problem. I have the extended warranty, luckily-the car has almost 56k miles as my daily driver. It was good for about a week with the new injectors, then started the exact same thing and again the dealer "could not reproduce the problem", even though they agreed with me last time.
I have a case open with American Honda, because the dealer really hasn't been able to help me at all, and I'm sick of going back there.
Anybody else had this problem? Any ideas? I think it has to be either fuel pump/line, ignition system, or sensor/computer. That doesn't really narrow it down much, and I'm no mechanic.
Any help would be greatly appreciated.

s2000guy

This sounds like a MAP sensor problem. Have them put in a new MAP sensor. They are cheap(about $40). Or put one in yourself.

Road Rage

MAP, EGR could do it.

boiler

Are you still using the original battery? It could be failing.

s2000guy

S2000 have no EGR.

bduel

Thanks for the 411. BUT what does the MAP sensor sense, exactly? And yes, it's the original battery, but there are no error messages from the electrical system (or any other system, for that matter)
BD

Road Rage

I did not know that - how do they contain the oxides of nitrogen?

boiler

My thought about the battery was that it may have an intermittant open between the cells, which could produce symptoms like yours. The Helm's manual mentions that lack of codes is probably a loose electrical connection somewhere or a broken wire. Could be a bad fuse for that matter.

Good luck,
Bob

s2000guy

[QUOTE]Originally posted by bduel
[B]Thanks for the 411. BUT what does the MAP sensor sense, exactly?

Dark_Sub_Rosa

I think I'm having the same hesitation problem, under 3k rpm and thats it.... I posted a new topic up about it hoping for some responses.