91_TOYOTA_4x4

well i had an exhaust leak for a long time and one day my check engine came on and then i noticed my header bolts were loose so i tightened them and the check turned off. so then my truck started this whole lag thing then my check turned on a week or so after the lag started and i thought well its gotta be the leak so i fixed the leak last weekend but the check engine light is still on and it still lags so now im going to pop the valve cover and check the timming though im not sure how it would jump because the engine is fully rebuilt 80k ago and when i last poped the cover the chain was nice and snug and eveything looked great. i also just did my rotor and cap and changed oil. i guess i will check the charcol canister too but what am i looking for in it?

jay what is the TPS? lmao im goona guess its the little valve box thing on the airfilter?

thanks for the help guys

Lumpy

get the codes

http://www.troublecodes.net/Toyota/


.

Jay351

Throttle position sensor. ITs located on the side of the throttle body.

www.4crawler.com has a good writeup on how to test it, you can also use the FSM. You need a digital multimeter and some feeler gauges. Might have to pull the TB off, I had to on my 3.0 to gain access.

and do pull the code(s)!

91_TOYOTA_4x4

ok i will se what i can do and let you guys know. on my way home after shifting to second i got a really bad lag and a bit of a sputter? getting worse. o and it is always bad when the engine is cold

91_TOYOTA_4x4

well im sure this is what im looking for but anyways to make sure, what fuses do i pull and put the jumper wire between?

c0ugar69

the one you jump is under the hood on the passenger side next to the fuse box i think, if its the same as the 89. there should be a diagram under the hood on the sticker that tells you what pins to jump.

4Crawler

iTrader: (3)

http://www.4crawler.com/4x4/CheapTri...CheckConnector

91_TOYOTA_4x4

ok well i know there is a fuse box under the hood but on the othe trouble code sight it said located by drivers side strut tower? lol but ok if its that fuse box then alright

thanks 4 crawler im gonna check that one out now. im on 4crawler sight looking at the TPS adjustment thing too like jay said and so far it sounds like it might be the TPS?

91_TOYOTA_4x4

ok i did the jumper wire thing and i got code 2 so its my AFM right? so now what do i do lol? i know that when i let off the gas after reving it with the hood open i hear a slurping sound from the airbox sooo??? what should i do?

91_TOYOTA_4x4

ok i just read some of the stuff about the afm and how to test if its bad or not so im going to try and borrow my friends ohm meter and see what i can do

Jay351

If you need a hand let me know

91_TOYOTA_4x4

Forsure dude just need to test the afm though i know its done so i need to find a new one for cheap. I guess after 412k km's i need a new afm lol

Jay351

Get a used one and go for another 400k

91_TOYOTA_4x4

Haha thats the plan just need to find one now hmmm

Jay351

Try craigslist, bc4x4 and failing that, check out alpi's in abbotsford.

91_TOYOTA_4x4

Yeah i tried craigs and there is one guy with one afm, how much is a used afm worth? and yeah i posted a wanted ad on bc4x4 so we will see. Just hope this will fix it lol

Jay351

I wouldnt pay more then $40 or so.. Toyota parts are plentiful around here if you know where to look

91_TOYOTA_4x4

40? Really? Lol my friend said a afm for his nissan new was like 400 lmfao well 40 aint bad hmmm gonna have to see what i can find for funds

Jay351

Well we are talking used

But like I said, we have SO many toyotas around here that prices have to go down (or im just cheap!).

I believe you can get a AFM from a 82 (I think) supra thats a little big larger then stock..

91_TOYOTA_4x4

Yeah lol lots of guys part out yotas around here so i should be able to find one.

I would love a 82 supra afm but they are hard to find lol i have looked