i have a 97 celica gt, the check engine light has come on. i know you can jump the terminals on odbI to read the engine codes. is there a similar way to check odbII, or should i just take it to the auto parts store?
Check Engine Light - 6G Celicas Forums
you have to use the OBDII scanner. go to Autozone and have them check the code.
7A-FTE:It's not about the money.Our Beams Swap.I <3 Dustin---07/16/06
auto zone told me the code was
'EGR system fault(Exaust Gas Recirculation)'
'The ECM has detected too little flow on the EGR system'
i did some research and it seems the EGR recirculates exaust gas back into the engine to lower temperature for emmisions somehow...
i had a spark plug shoot out and had to put a helicoil in. im guessing some aluminum fell into the cylinder and went out the exaust clogging up the EGR valve...
this is just a guess, but its the best i have at this point.
anyone have any advice on fixing this?
can i clean the valve or do i have to get a new one?
if i can clean it, how do i go about doing this?
'EGR system fault(Exaust Gas Recirculation)'
'The ECM has detected too little flow on the EGR system'
i did some research and it seems the EGR recirculates exaust gas back into the engine to lower temperature for emmisions somehow...
i had a spark plug shoot out and had to put a helicoil in. im guessing some aluminum fell into the cylinder and went out the exaust clogging up the EGR valve...
this is just a guess, but its the best i have at this point.
anyone have any advice on fixing this?
can i clean the valve or do i have to get a new one?
if i can clean it, how do i go about doing this?
egr vallves are pricey 
im glad i have OBDI as i had an egr issue, and i simply used a paperclip to fix it
im glad i have OBDI as i had an egr issue, and i simply used a paperclip to fix it
QUOTE"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH1994 GT:V6 swap, 5speed E53 W/ LSD, All Power, now RED1995 ST:SOLD @273k miles, Auto, all power, CarPC, White1994 ST:Totaled, 5spd, all power, RedRIP 07/09/09 @ 241,8101994 Lexus LS400:This is my new DD
most of the time it just gets clogged over time. take the EGR valve and that big pipe off and clean it out with some brake cleaner.
if that does not work you'll have to take the intake manifold off and find the EGR ports and clean those out.
there is a way you can test the operation of the EGR valve itself by putting vacuum to it and seeing if the idle stumbles or stays the same.
if that does not work you'll have to take the intake manifold off and find the EGR ports and clean those out.
there is a way you can test the operation of the EGR valve itself by putting vacuum to it and seeing if the idle stumbles or stays the same.
7A-FTE:It's not about the money.Our Beams Swap.I <3 Dustin---07/16/06
Put vacuum to the vacuum port on the top of the EGR valve.
If the engine dies the valve is opening enough.
If it just runs rough, it's opening partially, but not enough.
If it does nothing, the valve is totally clogged/bad.
You can clean it, carb cleaner or PB Blaster works better than brake clean, it won't evaporate as fast.
You also want a SMALL steel pipe cleaner to get in holes.
If the engine dies the valve is opening enough.
If it just runs rough, it's opening partially, but not enough.
If it does nothing, the valve is totally clogged/bad.
You can clean it, carb cleaner or PB Blaster works better than brake clean, it won't evaporate as fast.
You also want a SMALL steel pipe cleaner to get in holes.