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serious headache here,F20B related

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Old Feb 19, 2012 | 03:36 PM
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Icon2 serious headache here,F20B related

ok so read carefuly,I have a 1997 cd5 accord vtec as a part car,I drive it all the previous year with a F20B swap with no issue,but last weekend I swap the whole thing in my 95 accord wagon no-vtec,auto to manual and f22b2 to F20B jdm swap,I did like said in all those thread,I use the 97 engine harness,it was plug and play in the obd1 wagon,I wire vtec,vtec pressure,iab and knock sensor in they're respective pin at the ecu,I put my p0f ecu in it,everything work now except vtec,it was working fine in the donor car,there's continuity in every wire,I have no cel even after a 2 hours ride,temp is fine,I just can't figure what's the problem since every thing look fine and was working good 2 weeks ago,if somebody have an idea that can help,it will really be appreciated,thanks.
Sorry for my bad english.
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Old Feb 19, 2012 | 03:38 PM
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Default Re: serious headache here,F20B related

the car pull strong and ran fine,start really good but no vtec and 6500 rpm limiter.
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Old Feb 20, 2012 | 10:10 AM
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Default Re: serious headache here,F20B related

is the vtec pressure switch wired? Is your oil full? Does your vss work? Do you have a vtec ecu?
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Old Feb 20, 2012 | 05:02 PM
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Default Re: serious headache here,F20B related

not to repeat what was writen in the first post, pressure switch is wired at the ecu with the vtec solenoide wire since f20b does'nt have pressure sensor at all from factory,it was running fine this way in the donor car,oil is full and clean,mobil 1 synthec 5w-30,vss work,p0f ecu is a factory ecu for a h22a jdm engine,but I was already running it in the donnor car with a conversion harness since my 97 accord was obd2a,never had trouble with that ecu,I manualy tested the vtec solenoide with a direct wire and it work,I finally have a cel for the egr not working,code 12,but I already had it in the previous accord and it did'nt give a **** about that,always run fine,I'll continue to double check every thing since nobody seem to understand why it's not working,maybe I'll find something.....I really hope so,any help will be pleased.
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Old Feb 20, 2012 | 07:35 PM
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Default Re: serious headache here,F20B related

Have you ttaken the vtec solenoid apart and checked the springs inside and for any debris in the valve?
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Old Feb 21, 2012 | 04:02 PM
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Default Re: serious headache here,F20B related

no,I did some other test before removing it,with a multimeter,I test if I got continuity from inside the ecu to the body ground,there is and I have continuity in all wire,so its all corectly wired,after I take a run with it on the vtec wire in volt,the ecu is not sending anything through the wire at all( full throttle at 5500-6500 rpm),egr valve open so the ecu know the engine temps and the speed,I have no cel at all,no tps cel,except of the vtec not working,it run really fine,start really good,rev to 6400 rpm,not 5000 like if it was in limp mode,I really dont know now,I'll try to grab a p13 and test it but there's nobody around here with that
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Old Feb 24, 2012 | 02:19 PM
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Default Re: serious headache here,F20B related

looks like it's the ecu,everythings fine everywhere,even the solenoid work when the engine run if manually activate,so now I'll find an ecu... R.I.P. p0f
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