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b20 in eg problem with rpms

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Old 06-09-2010, 01:56 PM
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Icon3 b20 in eg problem with rpms

ok i swapped in a b20 with a p75 obd1 ecu i got a brand new ls dizzy ls im and pretty much ls everything so i got it started and it idles normal but when i give it gas it bogs out past 4 rpms it runs like it has a firing problem now the firing order is correct and i just bought a brand new dizzy so if any one has any answers let me know cause im just about ready to dump this motor and put a brand new b18 also it cant be the motor itself since its pretty brand new and i was also wondering if it could be the sensors cause i still havnt figured out the corred diagram for the tps and map since its from a pr8 im
Old 06-09-2010, 02:39 PM
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Default Re: b20 in eg problem with rpms

You need to tune it, that ecu won't run that motor. You are destroying your motor without a tune. Chipped p28 would do the best.
Old 06-09-2010, 02:45 PM
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Default Re: b20 in eg problem with rpms

are u sure cause its basically a stock b20 its non v so i thought using any non v obd1 integra ecu would work like the pr4 or the p75
Old 06-09-2010, 02:50 PM
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Default Re: b20 in eg problem with rpms

I assumed b20v, sorry for that. But using the stock map on that you would think it would at least run lean. It just sounds more like an ecu would fix it.
Old 06-09-2010, 02:59 PM
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Default Re: b20 in eg problem with rpms

Originally Posted by stunt1048
ok i swapped in a b20 with a p75 obd1 ecu i got a brand new ls dizzy ls im and pretty much ls everything so i got it started and it idles normal but when i give it gas it bogs out past 4 rpms it runs like it has a firing problem now the firing order is correct and i just bought a brand new dizzy so if any one has any answers let me know cause im just about ready to dump this motor and put a brand new b18 also it cant be the motor itself since its pretty brand new and i was also wondering if it could be the sensors cause i still havnt figured out the corred diagram for the tps and map since its from a pr8 im
based on your post it sounds like you havent done much trouble shooting.. that said why dont u put back your stock ecu. any motor will drive off any ecu. secondly you emphasized the fact that you bought a brandnew dizzy so try using one off a running ls. check you plug wires, spark plug gaps etc. you didnt state whether or not you have any cel's? if u do check those and get back to us.
Old 06-09-2010, 02:59 PM
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Default Re: b20 in eg problem with rpms

yeah thats kinda what i thought since some dude off craigslist sold me the p75 for like 30 so i might just buy another one so correct me if im wrong but a pr4 would do just the same as a p75 right?
Old 06-09-2010, 03:10 PM
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Default Re: b20 in eg problem with rpms

okay lets see no the cel comes on since i dont have the o2 sensor connected but i dont have any diagnostic tools to check the cel but so far i bought the dizzy brand new from honda which was a bad idea since they raped me but i new it when i bought than i disconnected the map sensor because the hoses werent connected to it snce its a lil hard to find the correct diagram and after i did that now it turns on but the spark plugs are flooded now even when i reconnect the sensor so pretty much these are the problems now
Old 06-09-2010, 05:49 PM
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Default Re: b20 in eg problem with rpms

Originally Posted by Adamvanxxx
You need to tune it, that ecu won't run that motor. You are destroying your motor without a tune. Chipped p28 would do the best.
this is not true i have a b20 in my eg with a p75... runs like a champ swap it 5 months ago no problems... sounds like it could be a sensor
Old 06-09-2010, 05:57 PM
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Default Re: b20 in eg problem with rpms

u can read ur cel with a paper clip and jump the diagnostic connector
read this website to find out what codes u have and post bac...

http://www.hondahookup.com/forums/sh...d.php?t=115614
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