check engine light codes 31 and 24, car wont rev and floods! help! with video.

89 soupda · 09-12-2011, 10:28 AM

ive been messin with this car for two days, tried another used maf and nothing. doesnt even change when unplugged. if anyone has any ideas thatd be great, thanks in advanced!

ive checked and found all vacuum leaks no boost leaks no intake leaks.

1989 supra 5spd trans

http://s136.photobucket.com/albums/q...MDU5LjNncA.mp4

the video is holding the throttle about 1/4 down. any more and it just floods like crazy and backfires and pops out of the intake.

89 soupda · 09-12-2011, 10:31 AM

I haven't actually done a "boost leak test" but I've closely looked at all of the piping. Also if I unhook the bov it blows boost out no problem so i know its getting boost..

Green7mgte · 09-12-2011, 12:14 PM

people from utah sure love parking their trucks ontop of stuff.
you sure its a 24?

89 soupda · 09-12-2011, 05:55 PM

Quote:

Originally Posted by Green7mgte

people from utah sure love parking their trucks ontop of stuff.
you sure its a 24?

I'm guessing you went through the Photobucket. Hahaha

I believe it was intake air temp sensor and maf.

Green7mgte · 09-12-2011, 10:07 PM

yea i checked your photos out.. I want a rabbit man. those suckers are peppy..

I only have a couple of suggestions. as for code 24.. I don't know man.
but im experiencing the AFM code also. what I did was go out and get one from a junk yard off of a lexus ls 400. the electronics are interchangeable.
that solved my problem but it recently came back.. so I went back and bought the clip and wires for it too. Just got it today and haven't put it on yet. So besides that suggestion I would also consider instead of replacing the afm and wires to test it and see exactly which pin is causing the problem. then replace as necessary

89 soupda · 09-12-2011, 11:19 PM

Quote:

Originally Posted by Green7mgte

yea i checked your photos out.. I want a rabbit man. those suckers are peppy..

I only have a couple of suggestions. as for code 24.. I don't know man.
but im experiencing the AFM code also. what I did was go out and get one from a junk yard off of a lexus ls 400. the electronics are interchangeable.
that solved my problem but it recently came back.. so I went back and bought the clip and wires for it too. Just got it today and haven't put it on yet. So besides that suggestion I would also consider instead of replacing the afm and wires to test it and see exactly which pin is causing the problem. then replace as necessary

I just got it sat in a garage for 15 years.

I went and looked in every junk yard for one and couldn't find one. I tore apart the harness and looked for bad wires and didn't find jack.
I added a new ground from head to the body just incase, i reset the battery and started it a few times to get it to idel, I noticed that it won't rev up at all until the engine light comes on. After the light comes on it does what is in the first vid. I'm posting a second one of what it does till the light kicks on.

89 soupda · 09-12-2011, 11:23 PM

Also, could you please explain to me on how to check the wiring and maf? I looked on google for forever but didn't find anything.

cre · 09-12-2011, 11:50 PM

You're not going to find a lot of accurate info if you search MAF... No Supra ever used a MAF.

KVAFM diagnostics: http://www.cygnusx1.net/Supra/Librar...ection=FI&P=96

89 soupda · 09-13-2011, 12:05 AM

http://i136.photobucket.com/albums/q.../VIDEO0063.mp4

I forgot to mention I have a safc2.

I'll look it up to. Do you have any idea on my problem? also how would I go about testing the wires to the sensor? It seems like every post I find on here your a very big help to them! Thanks.

89 soupda · 09-13-2011, 12:33 AM

I think I already have the Lexus afm housing?

I tested the two far right prongs and I have no resistance?

09-12-2011, 10:28 AM	#1
89 soupda Stock Join Date: Sep 2011 Location: slc, utah Posts: 11	check engine light codes 31 and 24, car wont rev and floods! help! with video. ive been messin with this car for two days, tried another used maf and nothing. doesnt even change when unplugged. if anyone has any ideas thatd be great, thanks in advanced! ive checked and found all vacuum leaks no boost leaks no intake leaks. 1989 supra 5spd trans http://s136.photobucket.com/albums/q...MDU5LjNncA.mp4 the video is holding the throttle about 1/4 down. any more and it just floods like crazy and backfires and pops out of the intake.

09-12-2011, 12:14 PM	#3
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	people from utah sure love parking their trucks ontop of stuff. you sure its a 24? __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

09-12-2011, 10:07 PM	#5
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	yea i checked your photos out.. I want a rabbit man. those suckers are peppy.. I only have a couple of suggestions. as for code 24.. I don't know man. but im experiencing the AFM code also. what I did was go out and get one from a junk yard off of a lexus ls 400. the electronics are interchangeable. that solved my problem but it recently came back.. so I went back and bought the clip and wires for it too. Just got it today and haven't put it on yet. So besides that suggestion I would also consider instead of replacing the afm and wires to test it and see exactly which pin is causing the problem. then replace as necessary __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

09-12-2011, 11:50 PM	#8
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	You're not going to find a lot of accurate info if you search MAF... No Supra ever used a MAF. KVAFM diagnostics: http://www.cygnusx1.net/Supra/Librar...ection=FI&P=96 __________________ 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 --->

09-13-2011, 12:05 AM	#9
89 soupda Stock Join Date: Sep 2011 Location: slc, utah Posts: 11	http://i136.photobucket.com/albums/q.../VIDEO0063.mp4 I forgot to mention I have a safc2. I'll look it up to. Do you have any idea on my problem? also how would I go about testing the wires to the sensor? It seems like every post I find on here your a very big help to them! Thanks. Last edited by 89 soupda; 09-13-2011 at 12:17 AM.

09-12-2011, 10:31 AM	#2
89 soupda Stock Join Date: Sep 2011 Location: slc, utah Posts: 11	I haven't actually done a "boost leak test" but I've closely looked at all of the piping. Also if I unhook the bov it blows boost out no problem so i know its getting boost..

09-12-2011, 11:23 PM	#7
89 soupda Stock Join Date: Sep 2011 Location: slc, utah Posts: 11	Also, could you please explain to me on how to check the wiring and maf? I looked on google for forever but didn't find anything.

09-13-2011, 12:33 AM	#10
89 soupda Stock Join Date: Sep 2011 Location: slc, utah Posts: 11	I think I already have the Lexus afm housing? I tested the two far right prongs and I have no resistance? Last edited by 89 soupda; 09-13-2011 at 01:21 AM.