ALLAN
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anyone know why when i shift quickly sometimes from 1st to 2nd, it feels as though the car hesitates? it almost feels like turbo lag. it only does this sometimes.
1-2nd gear hesitation
- Thread starter ALLAN
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ALLAN
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i know ive checked into it. i cant wait. feb.1 and 2nd here in florida theyre also having the lamborghini track event. im going to bring it to that also. i should be in arizona early february.
Could be a variety of things, and without being there to feel it makes guessing nearly impossible. One possibility if it happens mostly under hard acceleration & shifting, and the simplest to eliminate, is the TCS. Turn it off and see if the problem goes away.
Another is the vacuum actuated dash pot on the throttle body.
Try to experiment with it a bit at a variety of loads, gears, throttle etc. and see if you notice anything else that better defines the problem.
Another is the vacuum actuated dash pot on the throttle body.
Try to experiment with it a bit at a variety of loads, gears, throttle etc. and see if you notice anything else that better defines the problem.
I was just going to post this same sort of weird problem on my 91. It only happens from a dead stop in 1st to 2nd gear a slight hesitation like it's bogging out and only happens sometime like once every month or so. I had a complete tune up new everything Plugs,Fuel Filter,Air Filter,Hoses,Belts etc. Other than that the car runs perfect idles smooth pulls strong in all gears it's just a weird thing.
Steven 91 Blk/Ivory
Steven 91 Blk/Ivory
does it grind any? maybe the tranny needs to be flushed when was that last done?
upshifts at redline with the OEM US 5-speed gears has been known to cause this, particularly at 1->2 and 2->3
I believe its due to the spacing between the gear ratios. The "hesitation" is due to the car briefly falling out of VTEC range, which causes the momentary "lesser" acceleration.
IIRC this is remedied with close-ratio gearsets on both the newer 6-speed tranny and the JDM-spec 5-speed.
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if its intermittent, it might just be TCS kicking in... this can be verified by switching it off. If its TCS, I'd check your wheel speed sensors (have been known to foul once in awhile .. note these may confuse ABS as well)
[This message has been edited by cojones (edited 07 January 2002).]
I had my tranny flushed also with Redline it shifts super smooth I will try driving it with the Traction Control off and see what happens weather permitting.
Steven 91 Blk/Ivory
Steven 91 Blk/Ivory
ALLAN
Suspended
i tried my car this morning once with the tcs off, and worked perfectly. hopefully this is where the problem lies. what redline oil is best to put in the tranny. also, i attempted to put my cat bypass pipes in on sunday at home. GOOD LUCK! it looked relatively easy, but those cats have been on there for years and the bolts where all stripping. so im having them installed today. anyone have bypass pipes on with the stock muffler? is it louder? notice any performance increase?
I'm assuming we're talking about the engine here, which is easily distinguished from anything to do with the transmission, so don't worry about your tranny oil. Lot's of people have tried Redline and other synthetics but just as many as not have gone back to the OEM Honda oil. Unless you are in a very cold climate or race it for long periods on the track in a hot climate, it's probably your best choice.
Similarly the VTEC comment. Even shifting early so you land well below the VTEC switch point will not result in a conspicuous momentary "stall" like condition. No, it will not pull quite as hard, but it will be smooth and progressive. This is the whole point of VTEC! Small, high reving, high HP engines (think old Italian exotics) have always pulled hard at the upper end of the RPM range, VTEC is all about extending the torque curve down to the lower RPM for a wider power band and no "bog" despite fairly wide gearing. That's why for me, being "in VREC range" means it pulls smoothly in 2nd from a near stop, or allows passing without the drama of a down-shift. Try that in old (normally aspirated) cars getting anywhere near 90HP/litre!
[This message has been edited by sjs (edited 08 January 2002).]
Similarly the VTEC comment. Even shifting early so you land well below the VTEC switch point will not result in a conspicuous momentary "stall" like condition. No, it will not pull quite as hard, but it will be smooth and progressive. This is the whole point of VTEC! Small, high reving, high HP engines (think old Italian exotics) have always pulled hard at the upper end of the RPM range, VTEC is all about extending the torque curve down to the lower RPM for a wider power band and no "bog" despite fairly wide gearing. That's why for me, being "in VREC range" means it pulls smoothly in 2nd from a near stop, or allows passing without the drama of a down-shift. Try that in old (normally aspirated) cars getting anywhere near 90HP/litre!
[This message has been edited by sjs (edited 08 January 2002).]
If all else fails, then try disabling the TCS by temporarily unplugging the wiring harness that feeds into the TCS controller behind the driver’s seat. I had to do this after having “hesitation” problems with my car with the TCS disabled (using the switch). Or (I just remembered) simply temporarily disable the system by removing the TCS fuse located in the engine compartment fuse box. For some reason my TCS was running in some sort of fail-safe mode even though it was disabled by the dash button.
DanO
DanO
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