p1130, p1133, p1150, p1153 on 2000 lexus es300

[garry]

Aka everything is wrong and my car hates me.

Car: 2000 lexus es300, 3.0L 1mzfe and 4 speed auto trans.

developing thread on the chans (Will copy paste info as related to here)
http://boards.4chan.org/o/thread/10961249

WARNING: MASSIVE WALL OF TEXT INCOMING. I will try to keep it organized but there’s a lot of information and maybe my brain is a bit fried right now. I’ll try to clean it up later, until then please bear with me.

Since I got my car it’s always had a hiccup at idle. After a few thousand miles it got worse and I was blessed with the codes:
p1130 (AFR circuit range performance bank 1 sensor 1)
p1150 (AFR circuit range performance bank 2 sensor 1)
p1135 (heater circuit bank 1 etc etc)
p1155 (heater blahb blah other bank)
P0125 (from googling I found this was caused by the previous offending codes apparently.)

Towards the end of this (just the last week or so, I also got the 1133 and 1153 circuit response malfunction, which was kind of scary because it moves things from
>the AFR sensors are giving out of range responses
to
>the AFR sensors aren’t even talking back properly

I finally got the money to buy new OEM replacements and installed them last night. took it out for a drive and everything seemed ok, but it was still hiccuping a little (Not as bad it seemed though) and I wasn’t getting any codes, so I went to bed.

This morning I’ve got the codes shown in the title again. Both AFR sensors are brand new Denso units, and I’ve checked the AFR heater and EFI fuses (no idea how to check the relays nor where the AFR relay is for this car, doesn’t have one in the fuse box, if at all).

Tonight I’m going to try and trace the wires for the sensors (which will be really, really fun I’m sure) and continuity test them but I feel like that’s pointless as I’m getting the exact same codes for both banks which use different sets of wires, right?

MISC INFO:

Also have a MAF in the mail.

pulled the MAF for funzies to see what effect it’d have this time. car idled fine but I made the mistake of pulling it onto the road to see how it felt.

literally no power, I could floor it and got almost no revs. at this point I’m just doing random stuff and don’t know what the results mean but I thought it couldn’t hurt to share.

Also checked the fuses, all of them are fine, didn’t see an AFR relay marked.

I did find some other people with the same problem but none of them seemed to have gotten it fixed.
http://www.clublexus.com/forums/es300-and-es330/487472-dumb-2000-lexus-es300-a-f-and-cl-lights-pics.html

>it’s even the same colour as mine
Must be a grey issue!

Update 1: heater circuit codes are back as well

Topic

[garry]

New videos incoming but here’s a spoiler picture.

I’ve been following the fat white wire because /hunch

god I hope this leads me somewhere.

Update: oh shit son. (see third video)

1. https://www.youtube.com/watch?v=b2buej_gUjA&list=UUD-TycUCxVYTT0LCUpeB0HQ
2. https://www.youtube.com/watch?v=aSh20E3N-Tk&list=UUD-TycUCxVYTT0LCUpeB0HQ
3. https://www.youtube.com/watch?v=fv7S-dcRLdI&list=UUD-TycUCxVYTT0LCUpeB0HQ

Attachments:

• IMG_20140828_004759.jpg

[garry]

and finally

I just want to say HUGE thanks to you Karl, I wouldn’t have gotten even halfway here without your help (or without spending a lot of money that I don’t have in the first place lol).

Also, if anyone happens to need a pair of 14 year old (but completely functional, apparently) Denso AFR sensors, I do seem to now have a spare pair, seeing as how I bought two new ones at the start of all this fun.

I’d be more than happy to mail them out to anyone that needs one.

[Its me]

Excellent news!

Sounds like you were up late and running only on Red Bull and determination!!!

-Karl

P.S. Make sure you make permanent repair with the proper gage wire…

[garry]

Yeah I was kind of losing my mind a little bit near the end, tracing a mass of wires knowing that you could be going in the entirely wrong direction doesn’t do a man’s sanity any good lol.

all paid off though, and yeah I’ll get down to work and pick up some thicker wire for a less …fire prone solution.

car still stutters at idle(well it has since I got it), but that’s another thread for another time :p

thanks again.

[Author]

Replies