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Hey Eric,
I have a 2001 Honda Prelude and I’ve been having some problems with the acceleration. This only happens occasionally but it’s annoying. Sometimes right after I engage into 2nd or 3rd gear at low RPMs and accelerate, the acceleration will hesitate for a second or two then go back to normal. I’ve searched everywhere and I can’t seem to pinpoint where this problem is coming from?? Any help would be greatly appreciated. Thanks.
-Ian
By the way, I love your videos. I learn a lot from them. Keep up the great work!
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Quoted From Beefy:
I wouldn’t changed the distributor as part of a tune-up. The cap and rotor button would be a logical next step though. Also, are there any ‘mods’ on the car? I need to ask this more often, as you Honda guys love to ‘tune’ your cars, which can lead to problems that aren’t accounted for if they aren’t mentioned.
Yea, what I meant was cap and rotor for distributor. It has cold air intake and catback exhaust.
Meh, that’s not terrible. I would pull the dizzy cap and look for carbon tracks in there, as well as moisture. Might as well replace the cap and rotor button if it’s been forever since it’s been done. You may also want to check the mechanical timing of the engine just to eliminate the possibility that it’s out of time.
http://www.youtube.com/watch?v=sGzxCCaxDjI
Good luck man.
You could also test the throttle position sensor. Sometimes acceleration hesitation can be caused by that.
Quoted From Beefy:
Meh, that’s not terrible. I would pull the dizzy cap and look for carbon tracks in there, as well as moisture. Might as well replace the cap and rotor button if it’s been forever since it’s been done. You may also want to check the mechanical timing of the engine just to eliminate the possibility that it’s out of time.
http://www.youtube.com/watch?v=sGzxCCaxDjI
Good luck man.
Can’t I just unplug the negative cable on the battery for a few minutes to reset timing?
I just want to make sure you guys know.. this acceleration problem only happens occasionally. Most of the time it works like normal.
Well, no, resetting the PCM won’t reset the mechanical timing of your engine. I would start by inspecting the cap and rotor like I previously mentioned. Is there a pattern to the intermittent problem? For instance, if it only seems to happen when it rains or is very humid, the cap and rotor would be my number one suspects.
start with fuel pressure or fuel filter. if that checks. look for voltage leaks. heres some videos by eric to guide you in your diagnostic. C8-)
http://www.youtube.com/watch?v=mdpP4wxB … plpp_video fuel
http://www.youtube.com/watch?v=x-U9WqJf … plpp_video finding voltage leaks
Quoted From college man:
start with fuel pressure or fuel filter. if that checks. look for voltage leaks. heres some videos by eric to guide you in your diagnostic. C8-)
http://www.youtube.com/watch?v=mdpP4wxB … plpp_video fuel
http://www.youtube.com/watch?v=x-U9WqJf … plpp_video finding voltage leaks
Thanks man.. I’ll check those right away and post back the results.
Id also recommend stress testing the ignition system. When was the last time you did a tune up?
You have to make sure you use OEM parts for ignition systems on these vehicles.
Quoted From dreamer2355:
Id also recommend stress testing the ignition system. When was the last time you did a tune up?
You have to make sure you use OEM parts for ignition systems on these vehicles.
A few months ago I changed the spark plugs and spark plug wires to NGK iridium/NGK wires. I have not changed out the distributor yet. What else should I change for a typical tune up?
I wouldn’t changed the distributor as part of a tune-up. The cap and rotor button would be a logical next step though. Also, are there any ‘mods’ on the car? I need to ask this more often, as you Honda guys love to ‘tune’ your cars, which can lead to problems that aren’t accounted for if they aren’t mentioned.
Quoted From Beefy:
Well, no, resetting the PCM won’t reset the mechanical timing of your engine. I would start by inspecting the cap and rotor like I previously mentioned. Is there a pattern to the intermittent problem? For instance, if it only seems to happen when it rains or is very humid, the cap and rotor would be my number one suspects.
There’s no pattern, it happens randomly but very occasionally. The weather and temperature does not have anything to do with it. Sometimes it happens on hot and dry days. Any other ideas? Thanks.
By the way, this motor and tranny only have a little more than 100k miles on them.
if you do replace the cap and rotor use honda OE parts. when you say acceleration issue. does it bog, hesitate,what exactly does it
act like?Quoted From college man:
if you do replace the cap and rotor use honda OE parts. when you say acceleration issue. does it bog, hesitate,what exactly does it
act like?It hesitates like it’s being held back only for a second or two.. then it resumes normal acceleration.. it only happens at low RPMs.. and I’ve only experienced it in 2nd and 3rd gear.. it just feels like a lot less power for a moment and then it returns to normal power.. I will replace the cap and rotor with Honda Genuine parts and then I will post back to let you guys know the result.
Fuel pressure seems to be normal. How would I check the fuel filter besides replacing it?
By the way, what else would a “tune-up” consist of? Spark plugs, spark plug wires, cap and rotor.. anything else besides those?
I would check fuel pressure with a fuel pressure gage. if its within spec than don’t change it. I read that the filter is in a terrible spot.
drivers side by the fire wall. Is your throttle body clean? also do you have a cable to your throttle body or is it electronic? check out some
videos that Eric made.C8-)http://www.youtube.com/watch?v=41yFXjib … plpp_video
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