wbthornton88

The truck is a 95 3.0 4x4. The check engine light has been on for a while now. I'm trying to make this quick so I'm just going to give some symptoms. I have yet to check code from research sounds like a 25/26 or something. Crank truck after it hasn't been ran for over 12 hours and it wants to warm up acts like its not gettin gas when you try to go. After a good 30 seconds the truck idles up to 1500 rpm and gets gas fine. After warmed up truck idles back down to 1000. When I get on the rode as I get into usually second gear and around 2000 rpm the check engine light comes on and I can immediately feel a loss of power. Almost as if the truck just bogs down. Any ideas?

iamsuperbleeder

oh boy... could be O2 sencor, TPS, ignition, fuel injector(s), and on and on and on...

need to pull them codes to at least get a place to start, it's not that hard...

wbthornton88

ok can you tell me how to do that? I remember reading something.

rock slayer

under the hood on the right side there is a diag box you need to jump a wire acrost 2 of those terminals the same ones to do timing it should tell you which those are on the underside of your hood then turn your egnition to on and count how many times your eng light flashes

abecedarian

under the hood, find the diagnostic plug behind the battery.
insert jumper between the TE1 and E1 terminals- there should be a diagram on the underside of the lid.
turn key on (don't start) and count the flashes.

rock slayer

so flash flash.......flash flash flash.........long pause..........repeat would be 25
or flash flash.......flash flash flash.................flash flash.......flash flash..........long pause..........repeat would mean 25 and 22

wbthornton88

what type of wire?

wbthornton88

ok I found the lil gray box. Theres gunk all in the terminals. I guess Ill try to scrape it out.

rock slayer

any lil wire 3 in long or so doesn't really matter long as it fits in the terminal

rock slayer

dont scrape it out thats dielectric grease

rock slayer

its supposed to be there

wbthornton88

ok the code is flash flash, flash flash flash flash flash, flash flash flash flash flash, flash flash, and then it starts over so 1 2, 1 2 3 4 5, 1 2 3 4 5, 1 2

rock slayer

so its 25 and 52

rock slayer

hold on i will check my book

rock slayer

25 is air fuel mixture lean and 52 is knock sensor its a 3vz-e right

wbthornton88

thats what I just thought. What is the knock sensor?

rock slayer

the knock sensor is the worst thing to replace lol :/ it senses a spark knock condition in your engine and lets your ecu know to advance the timing to compensate if your standing in front of your truck the wires come out fron under the right fuel rail between injectors for cylenders 4 and 6

wbthornton88

yea 3vze Its telling me the knock sensor is detecting a knock right? How do I know whats causing it though

wbthornton88

so basically its telling me my timing is slightly off?

rock slayer

no its telling you there is a malfunction the ecu should compensate for it and you would never know
thebook says it could be 3 things and i doubt it would be the third
1open or short in knock sensor circuit
2knock sensor(loosness ect.)
or 3 ecm