Ok, I have had my 95 vtec prelude for two years, and had very little complaints.
Anything that needs to be fixed, i've fixed myself with little problem, but there is still one MAJOR issue that I cannot seem to weed out....
Yes folks, the infamous h22 lag/drag.
I have searched and searched and found nothing sold to go by, so I've replaced a few things here and there to try to eliminate it.
I replaced the primary o2 sensor, the TPS, cleaned the hell out of the throttle body (which was filthy), used seafoam and nothing seems to get rid of that lag.
I know this has been discussed, but like I said, nothing conclusive or solid (like "How To: Get rid of the h22 lag") yknow?
If anyone could be gracious enough to point me in the right direction or just flat out advise me, it would be GREATLY appreciated.
It's getting to the point where i barely wanna deal with this damn car anymore if i have to deal with that lag..
Yeah, I'm not sure what you mean by "the infamous h22 lag/drag". Explain a little more about your problem and the symptoms and it will be easier for everyone to help you.
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2001 Nighthawk Black Pearl Type SH
Haha, sorry, I guess my wording waskinda vague..
Yes, throttle hesitation:
As in, most gears, around 2500-3500 range will dud out almost as if you had too much air in your AFR, or if your car is stuttering when you run out of gas.. same feeling almost exactly.
It seems this is a pretty common problem, so I've been working my way through things that may be the issue (bad o2 sensor, bad TPS, bogged TB, restricted IM ports from carbon, bad EGR valve) and nothing seems to eliminate this issue.
Seems to happen randomly, like some days are TERRIBLE, some are just fine.
Also seems to happen more often when flooring it.
I hope y'all can help a brutha out..
Haha, sorry, I guess my wording waskinda vague..
Yes, throttle hesitation:
As in, most gears, around 2500-3500 range will dud out almost as if you had too much air in your AFR, or if your car is stuttering when you run out of gas.. same feeling almost exactly.
It seems this is a pretty common problem, so I've been working my way through things that may be the issue (bad o2 sensor, bad TPS, bogged TB, restricted IM ports from carbon, bad EGR valve) and nothing seems to eliminate this issue.
Seems to happen randomly, like some days are TERRIBLE, some are just fine.
Also seems to happen more often when flooring it.
I hope y'all can help a brutha out..
have you tried cleaning the throttle body out, especially that butterfly valve? I'm thinking possible sticky throttle body.
Seems to me like it might be an issue with spark or fuel. Have you checked your injectors, fuel pump, fuel filter, plugs, wires, distributor cap and rotor?
have you tried cleaning the throttle body out, especially that butterfly valve? I'm thinking possible sticky throttle body.
Nope,I took the TB off today, cleaned the EGR again, and the IM, put a new TPS on, and detail cleaned the TB with carb/TB cleaner.. no luck.
Quote:
Originally Posted by Artifex
He's talking about the dreaded hesitation problem. I hear it sucks; I've never seen it personally.
Yup.. this is building up my part pulling repertoir though Ken, and sorry about the double thread..
Quote:
Originally Posted by 93H22ALude
Seems to me like it might be an issue with spark or fuel. Have you checked your injectors, fuel pump, fuel filter, plugs, wires, distributor cap and rotor?
Yeah, fuel is my next plan of attack.. I will be documenting it all once I figure it out..
It doesnt feel like a tranny/clutch issue which I'm glad about, but this is still so irritating.
To clean the EGR ports are you talking about the port where the valve is mounted?
If so, I cleaned the hell outta that, but I havent done the IM ports yet.. in fact I don't know how. I know you drill them out, use a slide hammer (I cant find one small enough) and use carb/TB cleaner right?
maybe when I'm in school I can do this.
How much work is it to change the fuel filter and pump?
And lastly, does anyone know a good place in my area to get the injectors cleaned?
How much work is it to change the fuel filter and pump?
And lastly, does anyone know a good place in my area to get the injectors cleaned?
The filter and pump shouldn't take more than 10 mins apiece. Just rememeber to open your gas cap to relieve the pressure before you work on either one.
I know you can send you injectors to RC or Precision and they will clean and flow test them....
i had this problem, I cured it by adding a adjustable fuel pressure regulator and increasing the presure by 2psi. It cured it full stop and made the motor a lot more responsive.
mine is doin the same thing, i am almost positive its fuel, pump is good, changin the fuel filter soon, and if its not that then i will move to injectors, let me know if u figure it out first
Before buying or cleaning injectors I would suggest looking at the ignition system, replacing plugs/cap/rotor and possibly swapping the MAP sensor for a known good unit.
If you haven't read the plugs you need to do that. I would also suggest a compression test.
YEah I was just looking at some other posts.. I think the first direction I'll go is replacing the cap and rotor.. and of course the plugs at this point.
Map sensor seems ok, but for 30 bucks I might as well just throw on a new one.
No, I wouldn't recommend MSD. Just OEM. I personally have not had good luck with their stuff and though I have not tried their cap/rotor yet I wouldn't bother.
