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Topic #38842 65 posts Started by 94st_santos
94st_santos
#31
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QUOTE
>sounds like a trans problem... Does it slip at all? almost sounds like its the torque converter.... but honestly your never going to find out until you bring it to someone if you cannot dignose the problem yourself...


No it's not slipping, actually shifts very well for as many miles as it has. And the torque converter where is it at if some one could post a pic I'll check that. I'm starting to get that the problem might be the fuel pump if someone could see if they here it turn on before the crank that would help it might be a relay.
Bitter
#32
they look normal, other than being well worn.

how do the current plugs look?
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
94st_santos
#33
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QUOTE
>they look normal, other than being well worn.

how do the current plugs look?


Yeah well worn but that was only after maybe 2-3 months.
Bitter
#34
wow, did you drive 80k miles in those 3 months?!?
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
94st_santos
#35
I don't think, I've had the car since September almost a year and changed the plugs 3x to see what happened, but I think I'm going to try higher octane gas now that I have the NGk plugs and probably change the wires and try to get a hold of some seafoam.

This post has been edited by 94st_santos: Jul 3, 2006 - 10:27 PM
southwest2118
#36
hey you may have a restricted exhaust. unbolt it at the cat where it dosent flow through and check it out.
94st_santos
#37
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QUOTE
>hey you may have a restricted exhaust. unbolt it at the cat where it dosent flow through and check it out.


yeah I was just about to post that, that is what I thought it was I think my 1st cat is clogged and restricting flow which may have over heated my manifold and cracked it. I also got the code 71 EGR malfunction, which I think is recirculating to much exhaust gas from restrictive flow. I should be getting my headers with in the next week or so and I'll be replacing the EGR valve, I'll post what happens.

This post has been edited by 94st_santos: Jul 12, 2006 - 9:43 PM
Culpable04
#38
I'm getting the same code 71 and I replaced the EGR valve ( didn't help ). abotu the engine noise and lose of torque, If you reset your computer you 'll feel your car different untill the check engine light comes back on, then you'll hear the noise back again and the loss of torque. that's what I have experienced so far.
( if I don't get a solution to this I'll be taking the car to the dealer so they can deal with it and take my money in the process ) kindasad.gif

This post has been edited by Culpable04: Jul 10, 2006 - 8:03 PM
sh0x
#39
In case it's not related to your exhaust issue, I would check for vacuum or air leaks. Check the large hose from your air filter box to the intake. If there are any cracks at all, when the engine moves the cracks will open and it will suck in more air and lean out the mixture. Also check for vacuum leaks, esp. around the PCV valve and in any cracked rubber engine hoses. One way you can check for leaks is by using a length of 3/4" rubber tubing as a stethoscope. Failing that, I would check for intake gasket leaks. The trick here is to spray carb cleaner at the intake gasket and listen for a stumble.
Bitter
#40
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QUOTE(sh0x @ Jul 12, 2006 - 3:19 PM) [snapback]455213[/snapback]
>
In case it's not related to your exhaust issue, I would check for vacuum or air leaks. Check the large hose from your air filter box to the intake. If there are any cracks at all, when the engine moves the cracks will open and it will suck in more air and lean out the mixture. Also check for vacuum leaks, esp. around the PCV valve and in any cracked rubber engine hoses. One way you can check for leaks is by using a length of 3/4" rubber tubing as a stethoscope. Failing that, I would check for intake gasket leaks. The trick here is to spray carb cleaner at the intake gasket and listen for a stumble.

ST engine (7afe) is speed density (map) based, you can run an open throttle body if you want to, all the air measuring goes on in the manifold. airflow is calculated by MAP reading, enging rpm, and engine load, i may have left a few factors out.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
Culpable04
#41
What happen is there is no leak on the hoses, I change all my hoses and installed a new EGR valve and the problem still there. kindasad.gif
94st_santos
#42
I got my header today, I'm gonna pick up the gaskets friday and hopefully put it on saturday.
Sorry for bad pic.

IPB Image
LewFX
#43
what header is that
Batman722
#44
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QUOTE(LewFX @ Jul 13, 2006 - 1:39 AM) [snapback]455492[/snapback]
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what header is that

corolla header. He will need to get the pipe extended and have a second 02 flange welded on the b pipe too.
my st205 swapandour Beams swap
Bitter
#45
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QUOTE(94st_santos @ Jul 12, 2006 - 9:58 PM) [snapback]455382[/snapback]
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I got my header today, I'm gonna pick up the gaskets friday and hopefully put it on saturday.
Sorry for bad pic.

what is yours branded and what did the box yours came in say? mine was "Edge Racing Sport", and came with all the gaskets except the one to the cat.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
94st_santos
#46
My header is for the corolla, and I got it from NOPI and it's made by HP Racing.
southwest2118
#47
The best way to find a vacuum leak it to spray all the hoses coming off the manifold with brake cleaner.

IPB Image


so how did it turn up?

This post has been edited by southwest2118: Jul 16, 2006 - 11:37 AM
94st_santos
#48
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QUOTE
>so how did it turn up?


Well you can definitely feel the difference in the header, from cracked manifold with a 12 yr. old cat. but I am still having problems with the car. I went to the auto parts store today and was going to buy the EGR valve but instead the sells man told me to clean the O2 sensors with gasoline and clean the EGR valve with brake parts cleaner, so I gonna see how that works.
Bitter
#49
LOL cleaning the O2 sensors with gas is just so he can sell you new ones LOL
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
LewFX
#50
gas can be used as a cleaner
Bitter
#51
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QUOTE(LewFX @ Jul 19, 2006 - 11:33 PM) [snapback]458407[/snapback]
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gas can be used as a cleaner

not for an O2 sensor, maybe carb/choke spray, but i'd even be iffy on that. if the sensor is so old and worn that its no longer reading proper just replace it. you can get an OEM one online for relatively cheap, no soldering and splicing, just plugs in. i got one from http://sparkplugs.com/ for about $50. yours are a little more, but not TOO bad.

Denso OE identical O2 sensor 234-1053 234-1053 FRONT $77.48
Denso OE identical O2 sensor 234-2052 234-2052 REAR $40.58
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
rev_limit
#52
hey dude did you fixedyour car fixed yett ...if not .... will for my car it pick up very slow i have a 5 speed same thing it barly move when you drive it and even if you floor it ... i found out that the disturbitor was sitting wrong you just might need to turn the disturtor to the the right spot ... buy you have to retared the distur. and reset it...
Culpable04
#53
any update ?
I would like to know cause I have the same problem. I already change EGR valve like a month ago and nothing so I'll probably change my O2 sensors this weekend. if there is something I should know or could use, guys PLZ let me know
94st_santos
#54
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QUOTE
>hey dude did you fixedyour car fixed yett ...if not .... will for my car it pick up very slow i have a 5 speed same thing it barly move when you drive it and even if you floor it ... i found out that the disturbitor was sitting wrong you just might need to turn the disturtor to the the right spot ... buy you have to retared the distur. and reset it...


Do you mean the timing was off or the actual distributor was on wrong, I was planning on checking the distributor after I changed the EGR sytem.

I orderd the EGR valve + selenoid and the intake gaskets so I can clean the inside of the intake, I'll let y'all know what happens.
Culpable04
#55
did you replace your O2 sensors ?
DomGT
#56
What is your MPG?
'92 Grey Mitsubishi 3000GT SL -Sold'96 Black Celica ST 25th Anniversary -Sold'99 Black Mitsubishi 3000GT VR-4 -Sold'04 E250 Work Van -Going soon'08 Grey Dodge Charger Work Car -Ordered
Steevo
#57
How hard was it to get the two discolored plugs out?

I guess they look like they have had exhaust gas blowing by them discoloring them.


Have you changed the fuel filter? It is a bit of a pain, but does make a difference, my wife filled our car up at a station known for dirty gas and we had problems till I changed the filter, ran some Barrymans and reset the ECU.

The timing shouldn't change on the fly, there are two bolts securing the distributor.

Bitter
#58
that coloration is NOT caused by exhaust gasses. its case by a small amount of current tracing over the porcelin and atracting oil particles to the paths where they get stuck. it'll clean right off with a little brake cleaner or carb/choke.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
Steevo
#59
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QUOTE(Bitter @ Jul 26, 2006 - 11:03 AM) [snapback]461352[/snapback]
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that coloration is NOT caused by exhaust gasses. its case by a small amount of current tracing over the porcelin and atracting oil particles to the paths where they get stuck. it'll clean right off with a little brake cleaner or carb/choke.



Not that I am doubting, but the discoloration above the threads and around the hex area of the spark plug on two cylinders in due to electrical current?


Even though two are perfectly clean above the threads?


A simple exhaust leak around the plug gasket would cause this, and the fact that he is losing power under throttle, when compression is higer so leak off would be higher. Perhaps it is just oil loss from the tube seals burning on to the hottest part.
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