Honda Civic Performance - JDM Discussion Engine tech, forced induction, springs, shocks, brakes, tires, etc.

bogging

Old 03-Apr-2007, 08:21 PM
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bogging

96 si, using a motor from a 2000 EL(same I guess :P)

problem is, below 3k RPM, the car feels like it has turbo lag, then around 3k, starts to pull well, and feels really good at the higher rpm range, :/ not sure why but I hardly ever spend time @ 5k+ RPM

to give an example, i could easily spin my tires on my 96 CX in the rain, where as on the SI i have to actually launch the car at around 4000rpm to spin the tires

any idea what could be causing it ? maybe VTEC engaged all the time, the cam gear wasnt alligned properly? all stock too
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Old 03-Apr-2007, 09:31 PM
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sounds like you need a tune-up.
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Old 03-Apr-2007, 09:40 PM
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wires checked, plugs changed, oil changed, all fluids topped up =p air filter is ony a bit dirty
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Old 04-Apr-2007, 04:03 AM
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if the cam gear isn't aligned properly than your timing will be off, and all it takes is a tooth or 2 to make the car run like ***.
Pull the valve cover off and the timing belt cover and check that ASAP.
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Old 04-Apr-2007, 10:39 AM
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well how did you check the wires and plugs? Do you know what to check for? Was the electrode rounded or not? If you have a fuel pressure gauge you can do a broad check on your fuel filter, if not you'll just have to look at the filter and judge how long it's been in there.. if it looks old replace it. You can also check what andrew said, but usually if the belt jumped a tooth the car will idle very, very lumpy. If it's idling fine, my bet would be an old fuel filter
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Old 04-Apr-2007, 10:53 AM
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Originally posted by chris_v2
well how did you check the wires and plugs? Do you know what to check for? Was the electrode rounded or not? If you have a fuel pressure gauge you can do a broad check on your fuel filter, if not you'll just have to look at the filter and judge how long it's been in there.. if it looks old replace it. You can also check what andrew said, but usually if the belt jumped a tooth the car will idle very, very lumpy. If it's idling fine, my bet would be an old fuel filter
I was actually thinking it could be the fuel filter, the car idles great, its quiet and smooth at idle for the most part. It pulls pretty hard @ higher rpm, a pretty big difference over my CX(better gearing on the tranny helps too:P)

I changed the plugs when I bought the car, they were fairly warn out, the wires I had the mechanic check during the tune up and he said they didn't need replacing, fuel filter is next! thanks I'll update the thread when thats checked

btw where is the fuel filter located in a 96 SI :P?

edit: could it be the VTEC is engaged early or wired to run all the time? there is no CEL though
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Old 04-Apr-2007, 11:38 AM
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i would also check your base ignition timing with a timing light. It could be too far retarded or too far advanced.
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Old 04-Apr-2007, 12:08 PM
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Originally posted by zeeman
i would also check your base ignition timing with a timing light. It could be too far retarded or too far advanced.
I don't have the tools or experience for that kind of diagnostic :P

how is the ignition timing adjusted on a stock setup?
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Old 04-Apr-2007, 12:40 PM
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Originally posted by bananax


I don't have the tools or experience for that kind of diagnostic :P

how is the ignition timing adjusted on a stock setup?
where you located? I have a timing light I can check it for you..

And the fuel filter is located on the passenger side of the firewall (looks like a black oval kinda) Make sure to use a line wrench (if you have one) for the bottom 14 mm nut, it can get pretty rusty and you don't wanna strip it with an open end wrench. Also.. crack the banjo bolt on the top and the nut on the bottom first before removing any brackets or anything.
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Old 04-Apr-2007, 12:48 PM
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Originally posted by chris_v2


where you located? I have a timing light I can check it for you..

And the fuel filter is located on the passenger side of the firewall (looks like a black oval kinda) Make sure to use a line wrench (if you have one) for the bottom 14 mm nut, it can get pretty rusty and you don't wanna strip it with an open end wrench. Also.. crack the banjo bolt on the top and the nut on the bottom first before removing any brackets or anything.
Mississauga :P near dundas/mavis
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Old 04-Apr-2007, 01:06 PM
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Originally posted by chris_v2
where you located? I have a timing light I can check it for you..
You finally got a timing light?!?!?!?!
Sick of driving, oh so far, to hamilton to borrow tools eh...good.


You adjust the base timing by rotating the distributor until the timing marks on the crank pulley line up with the mark on the timing belt cover....its very easy to do....so easy even c-pos can do it.
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Old 04-Apr-2007, 01:23 PM
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scan the computer it might be a O2 sensor... i had this problem aswell...
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Old 04-Apr-2007, 01:27 PM
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Originally posted by blackhonda
scan the computer it might be a O2 sensor... i had this problem aswell...
o2 and cat both changed :/
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Old 04-Apr-2007, 01:34 PM
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why does everyone on this site always say "its the o2 sensor"??!?!?!?!
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Old 04-Apr-2007, 01:37 PM
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cause it could be... i changed my o2 and i dont have anymore bogging wat so ever
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Old 04-Apr-2007, 02:53 PM
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Originally posted by zeeman
why does everyone on this site always say "its the o2 sensor"??!?!?!?!
its the noobies answer to everything.. lol Your cars running rich? Damn must be an o2 sensor, replace it and see if it fixes it
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Old 04-Apr-2007, 02:55 PM
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Originally posted by zeeman


You finally got a timing light?!?!?!?!
Sick of driving, oh so far, to hamilton to borrow tools eh...good.


You adjust the base timing by rotating the distributor until the timing marks on the crank pulley line up with the mark on the timing belt cover....its very easy to do....so easy even c-pos can do it.
haha, I've had this light since.... I think... october? It's not actually mine it's a good friend of mines that lives near me, but he never uses it so it stays in my toolbox untill he has the need for it.

And I'm too pos to know how to adjust timing, mind driving to oakville to do mine?
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Old 04-Apr-2007, 05:45 PM
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Originally posted by chris_v2


its the noobies answer to everything.. lol Your cars running rich? Damn must be an o2 sensor, replace it and see if it fixes it
LOL thank god, finally some smart ppl!!!! welcome... I've been waiting
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Old 04-Apr-2007, 05:59 PM
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Originally posted by bbarbulo


LOL thank god, finally some smart ppl!!!! welcome... I've been waiting
ive been here for 2 years bruno.. i just got banned and made version 2.

im chris si 98 lol
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Old 04-Apr-2007, 06:10 PM
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It's also could be just your mindset as well bro. Your CX has a Y7 and your SI obviously a Y8. A Y7's intake manifold is geared for low-end/midrange. Around 4K my Y7 falls flat on its face but it pulls pretty good up to that point. So it could also be your perception of the car as well.
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