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General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.
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02-19-2007, 07:44 PM
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Focus Enthusiast
 
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HELP!! CEL Chip & Header
I have had a race header with the MIL o2 cheater and my CEL light was not on. I bought a Diablpsport Delta chip and had it on the car for a month, but had problems with the LED on the toggle switch not working (no CEL on), so I sent the chip back. I got a new chip and put it in and now my CEL keeps on coming on reading P0136 (o2 bank 1 sensor 2) I replaced the downstream o2 sensor figuring this might be the problem, but everytime I turn off the light it comes back on shortly after. The chip is tuned to the header. What could be the cause of this CEL light coming on?? I figured the chip and CEL timing might have been coincidental, but now I don't know. Shouldn't a header tune turn off the CEL, not on? and could it possibly mean the MIL o2 cheater went bad? or do you think it is the chip?
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 SRI, 2 1/2" custom catback-FC race header, Xcal2, NOS 75 shot, heater and fuel pressure switch, Zex purge, AZFS22C plugs, Bomz Racing seats, CF hood, Roush kit, pillar gauges, whiteface gauges, CF mirrors, halo headlights, Bomz coilovers.
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Focus Fanatic
Fan#: 1
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02-20-2007, 12:20 AM
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CloudNine88's Man
 
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What kind of "cheater" do you have????
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 Let's hear it for the Mazdaspeed3!!!! AND '08 GSXR 600 NOW TOO!!!!If I'm helpful, give me a REP Point. Click the little silver scale at the bottom of my username panel. |
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02-20-2007, 07:05 AM
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Focus Enthusiast
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Quote:
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SRI, 2 1/2" custom catback-FC race header, Xcal2, NOS 75 shot, heater and fuel pressure switch, Zex purge, AZFS22C plugs, Bomz Racing seats, CF hood, Roush kit, pillar gauges, whiteface gauges, CF mirrors, halo headlights, Bomz coilovers.
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02-20-2007, 09:49 AM
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RespectMyAuthoritah!
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sounds as though your MIL Eliminator isn't working. Bank 1 Sensor 2 is the 02 Sensor after the Cat.
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"I flushed a bag of skittles down the toilet yesterday and watched a NASCAR race in 8 seconds flat." 06 Spring Into Focus Best Sedan/Wagon Winner   03 SE SVT Wannabe (sold) to help pay for my 08 Cooper Red Mazda CX7 AWD GT
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02-20-2007, 11:49 AM
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CloudNine88's Man
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^^And Bingo was his name-o. I was thiking the same thing.
__________________
Let's hear it for the Mazdaspeed3!!!! AND '08 GSXR 600 NOW TOO!!!!If I'm helpful, give me a REP Point. Click the little silver scale at the bottom of my username panel. |
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02-20-2007, 06:36 PM
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Focus Enthusiast
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That's what i was thinking...is it common for the o2 cheaters to go bad?
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SRI, 2 1/2" custom catback-FC race header, Xcal2, NOS 75 shot, heater and fuel pressure switch, Zex purge, AZFS22C plugs, Bomz Racing seats, CF hood, Roush kit, pillar gauges, whiteface gauges, CF mirrors, halo headlights, Bomz coilovers.
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02-20-2007, 06:48 PM
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CloudNine88's Man
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I dunno. I've never used one. Maybe you just got a bad one?
__________________
Let's hear it for the Mazdaspeed3!!!! AND '08 GSXR 600 NOW TOO!!!!If I'm helpful, give me a REP Point. Click the little silver scale at the bottom of my username panel. |
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02-20-2007, 06:51 PM
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Focus Fanatic
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Cheap ones do...I got mine from New Edge and its been fine for the past 60,000 miles. Although if you have a chip why not just get it burned so it'll turn off the downstream O2 sensor?
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02-20-2007, 06:59 PM
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Focus Enthusiast
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Nah....I had it on for about 4 months and it worked fine....the day the light started coming on throwing the o2 sensor code, my battery terminal came loose and shorted my car...when I reconnected the terminal properly, about 20 miles later the CEL came on....I replaced the sensor...still light keeps on coming on...I'm thinkin maybe there is a resister in the o2 cheater that blew or something.
I figured that my chip would eliminate the light as well, but even with the header tune on my chip, my light is coming on. But i guess it is possible that when my terminal came loose and shorted out my car, is messed up the cheater. =/ you think I should get a new cheater and see what happens?
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SRI, 2 1/2" custom catback-FC race header, Xcal2, NOS 75 shot, heater and fuel pressure switch, Zex purge, AZFS22C plugs, Bomz Racing seats, CF hood, Roush kit, pillar gauges, whiteface gauges, CF mirrors, halo headlights, Bomz coilovers.
Last edited by lildisco; 02-20-2007 at 08:42 PM. |
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02-20-2007, 07:06 PM
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CloudNine88's Man
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That is definately a possibility.
__________________
Let's hear it for the Mazdaspeed3!!!! AND '08 GSXR 600 NOW TOO!!!!If I'm helpful, give me a REP Point. Click the little silver scale at the bottom of my username panel. |
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