violent shaking
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DOHC i-VTEC TiMEX
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From: the OC
Rep Power: 362 
violent shaking
well, I was pushing my engine pretty hard last night while trying to learn at 9 psi (... ebc's)... I already have a check engine light from a busted o2 sensor ... so after a couple times hitting 9 psi, I hit it again and my car shakes violently ... I let off the gas and my check engine light begins blinking ... what does that mean?
it's done it before as well ...
it's done it before as well ...
Joined: Sep 2001
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From: Lexington, KY
Rep Power: 584 have u made any duty cycle corrections, i mean u cant just expect it to learn with out any help, if the cycle is too high ill get like a whooshing sound, ive had that happen before, try turning it down (boost) and see if the prob still occurs, if it still happens then u may have a problem
Joined: Sep 2002
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From: NV
Rep Power: 812 I was driving for a while and that happened to me going about 55mph. When I let off the gas, the car was shaking and it sounded like really loud base was playing constantly. I don't have turbo, so maybe it's the cold weather? Almost felt like I was riding the rim with a flat tire.
Joined: Feb 2003
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From: Bay Area, CA
Rep Power: 401 imo, i think some people here are pushing to much psi for their own good. if you read up and ask some experts a lot of them recommend 6-7psi tops on a civic. people here are going 9,10,11psi. not saying this problem is for sure boost related but just that sooner ot later, it will get you if your not built up for it.
Joined: Sep 2001
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From: Lexington, KY
Rep Power: 584 ok based on the light and the symptoms, ive had this, catalyst told me if could be misfiring, duty has to do with fuel, since u have a EBC i take it, ur boost should be at a 0.??, and ur duty should be at a ??%, they have to be correct for each other, u have to get the duty which is ur fuel pretty close to correct before the EBC will learn it, u cant be giving it no fuel and expect it to learn it. if u have to much fuel, it can bc mine did sound like a whooshing coming from the engine, plus 9-10 psi on stock guts?? not a logical thing to me
Originally posted by 18secQuaterMile
imo, i think some people here are pushing to much psi for their own good. if you read up and ask some experts a lot of them recommend 6-7psi tops on a civic. people here are going 9,10,11psi. not saying this problem is for sure boost related but just that sooner ot later, it will get you if your not built up for it.
imo, i think some people here are pushing to much psi for their own good. if you read up and ask some experts a lot of them recommend 6-7psi tops on a civic. people here are going 9,10,11psi. not saying this problem is for sure boost related but just that sooner ot later, it will get you if your not built up for it.
i dont know who ur talking to but its no one here.
ne one with an SF kit and alcohol upgrade is running 9-11psi daily. myself included.
Joined: Feb 2003
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From: Bay Area, CA
Rep Power: 401 last time i checked alcohol injection doesnt make your internals stronger 
and i said it may not be a boost related problem....
and i said it may not be a boost related problem....
Registered!!
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From: Lancaster, California, US
Rep Power: 312 The alcohol keeps it from detonating. But if you have the wrong spark plugs, it could be misfiring. I strongly recommend the Denso IK22 plugs.
10 psi every day if you beat on it can do some wear and tear on your engine. I like the idea of a dual stage controller with 6 psi normal and 9-10 psi daily. Thats what i am doing. Also makes it a lot easier to launch. You dont lose soo much traction on 6 psi.
10 psi every day if you beat on it can do some wear and tear on your engine. I like the idea of a dual stage controller with 6 psi normal and 9-10 psi daily. Thats what i am doing. Also makes it a lot easier to launch. You dont lose soo much traction on 6 psi.
Proud Srt4 owner
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From: Spangdalhem AFB, Germany
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Originally posted by OsOBooSTeD
i dont know who ur talking to but its no one here.
ne one with an SF kit and alcohol upgrade is running 9-11psi daily. myself included.
i dont know who ur talking to but its no one here.
ne one with an SF kit and alcohol upgrade is running 9-11psi daily. myself included.
Proud Srt4 owner
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From: Spangdalhem AFB, Germany
Rep Power: 0 Originally posted by Catalyst
The alcohol keeps it from detonating. But if you have the wrong spark plugs, it could be misfiring. I strongly recommend the Denso IK22 plugs.
10 psi every day if you beat on it can do some wear and tear on your engine. I like the idea of a dual stage controller with 6 psi normal and 9-10 psi daily. Thats what i am doing. Also makes it a lot easier to launch. You dont lose soo much traction on 6 psi.
The alcohol keeps it from detonating. But if you have the wrong spark plugs, it could be misfiring. I strongly recommend the Denso IK22 plugs.
10 psi every day if you beat on it can do some wear and tear on your engine. I like the idea of a dual stage controller with 6 psi normal and 9-10 psi daily. Thats what i am doing. Also makes it a lot easier to launch. You dont lose soo much traction on 6 psi.
Thread Starter
DOHC i-VTEC TiMEX
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From: the OC
Rep Power: 362 hmm ... perhaps I'll invest in some ik22's then ...
but yeah, I run 7 psi daily, 9 psi on high boost with my dual stage ebc ... however, I rarely ever take it up higher than 1 psi ... unless I'm trying to get on the freeway, pass somebody or race ;P
but yeah, I run 7 psi daily, 9 psi on high boost with my dual stage ebc ... however, I rarely ever take it up higher than 1 psi ... unless I'm trying to get on the freeway, pass somebody or race ;P
Joined: Sep 2002
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From: Arizona
Rep Power: 326 im runnin 6 right now...
9-10 in the spring (i have alcy injection)...
food for thought... did u do anything to your map sensor? the map caused some weird probs on my car but it's fixed now...
gl either way
9-10 in the spring (i have alcy injection)...
food for thought... did u do anything to your map sensor? the map caused some weird probs on my car but it's fixed now...
gl either way
Registered!!
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From: Palmdale, CA
Rep Power: 0 Yer nuts for driving with a busted O2....
if yer o2 sensor isn't reading the correct exhaust temperature the motor could start detonating and burn some pretty holes in your pistons.
Technically yer Knock sensor should pick up the detonation and retard the ignition, but if your pushing the motor at high RPMs something break.
The shaking was probably detonation and yer motor totally going nutz trying to figure out why all this air and fuel is in it. When you floor the pedal or run the engine hard the ECU drops all fuel mapping and runs on the fly by reading sensor input. I'm assuming the busted o2 sensor made the computer freak out not know exhaust temp.
if yer o2 sensor isn't reading the correct exhaust temperature the motor could start detonating and burn some pretty holes in your pistons.
Technically yer Knock sensor should pick up the detonation and retard the ignition, but if your pushing the motor at high RPMs something break.
The shaking was probably detonation and yer motor totally going nutz trying to figure out why all this air and fuel is in it. When you floor the pedal or run the engine hard the ECU drops all fuel mapping and runs on the fly by reading sensor input. I'm assuming the busted o2 sensor made the computer freak out not know exhaust temp.
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