05-22-2012, 06:43 PM
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#1 |
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3" Exhaust
Join Date: Mar 2012
Location: California
Posts: 105
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Code 21 again
Okay guys so originally, started with codes 21, 41, and 51......
replaced afm with new one, new oem Toyota tps and connector, and replaced with brand new Denso O2 sensor and gasket. I still get a code 21 while driving. My car only has one o2, its not a California car. Im not worried about smog I just don't want this damn code on anymore. My next step is checking the ecu, anyone have a pinout of the ecu? Also what type of reading am I looking for? (ohms, volts?) Oh and if it helps, 86.5 NA 5 Speed....thanks guys |
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05-22-2012, 08:49 PM
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#2 |
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3" Exhaust
Join Date: Mar 2012
Location: Hayward
Posts: 84
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You sure u have it connected n no short out or broken wire cuz dat exactly happened to me on my gte
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92' 7mgte MT st8 bakcat 
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05-23-2012, 01:35 PM
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#3 |
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3" Exhaust
Join Date: Mar 2012
Location: California
Posts: 105
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Ya its connected correctly....does anyone know what I should be reading with a multi meter? Or where too test? oh and the code is intermittent.....doesn't happen all the time
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05-23-2012, 04:22 PM
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#4 |
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Supra Forum Moderator
Join Date: Nov 2009
Location: Green-Ohio
Posts: 1,297
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http://www.cygnusx1.net/Supra/Librar...spx?S=FI&P=119
o2 sensor.. and the 02 heater sensor http://www.cygnusx1.net/Supra/Librar...spx?S=FI&P=121 since you said you just replaced your 02 sensor and all your wires are non corroded or dry rotted.. then id lean more towards the 02 heater sensor. and 2 pages past that is. http://www.cygnusx1.net/Supra/Librar...spx?S=FI&P=122 ecu stuff
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 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : Last edited by Green7mgte; 05-23-2012 at 04:25 PM. |
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05-23-2012, 05:45 PM
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#5 |
 Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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The 7M-GE's o2 sensor does not have a heater, just the 7M-GTE.
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal.  Tip Jar --->  |
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05-23-2012, 06:58 PM
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#6 |
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Supra Forum Moderator
Join Date: Nov 2009
Location: Green-Ohio
Posts: 1,297
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Didn't see the n/a. I guess I just assume everyone owns a turbo.
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92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : |
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05-24-2012, 01:47 PM
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#7 |
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3" Exhaust
Join Date: Mar 2012
Location: California
Posts: 105
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I wish I did have a turbo lol, and thanks I'll look at the resistance today. Like I said replaced a year old Denso sensor with a brand new Denso one. So idk, wire looks good. No breaks or corrosion.
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05-24-2012, 02:23 PM
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#8 |
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3" Exhaust
Join Date: Mar 2012
Location: California
Posts: 105
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Also forgot to ask. Is there maybe a difference in connectors? Im running Denso #24-1051 as per what I looked up and according to autozones website. I see another option for 24-1057 but from what I've read that's a universal fit
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