failed smog HELP!

nu_supra04 · 03-26-2012, 05:45 PM

As the title says i failed the CA smog test only because of the EGR and the mechanic was telling me that he wasnt getting any vacumn from the car and that it would take an hour or so to fix (to check the hoses clean out the EGR and check for anything else) but that he couldnt promise anything...so i decided to ask you guys since i trust you more than him right now plus he is charging 80 and that could possibly add up you never know oh yeah my Supra is a 91' non-turbo 160xxx miles ....any advice will be appreciated

cre · 03-26-2012, 07:32 PM

So clean and replace hoses and the vacuum ports at the throttle body...

Cleaning out the intake plenum and the piping from the cooler to the EGR regulator to the plenum would be a good idea too.

Toyota Service and Repair Manual - EGR section:
http://www.cygnusx1.net/Supra/Librar...ection=EC&P=16

As for the throttle body, if you're uncomfortable with removing it (can't imagine why though) you may just spray carburetor cleaned into each of the metal nipples until it sprays in freely. It's best to do with the engine running so it doesn't pool up and try to pass through the engine all at once.

03-26-2012, 05:45 PM	#1
nu_supra04 Stock Join Date: Sep 2009 Location: Marysville Posts: 15	failed smog HELP! As the title says i failed the CA smog test only because of the EGR and the mechanic was telling me that he wasnt getting any vacumn from the car and that it would take an hour or so to fix (to check the hoses clean out the EGR and check for anything else) but that he couldnt promise anything...so i decided to ask you guys since i trust you more than him right now plus he is charging 80 and that could possibly add up you never know oh yeah my Supra is a 91' non-turbo 160xxx miles ....any advice will be appreciated

03-26-2012, 07:32 PM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	So clean and replace hoses and the vacuum ports at the throttle body... Cleaning out the intake plenum and the piping from the cooler to the EGR regulator to the plenum would be a good idea too. Toyota Service and Repair Manual - EGR section: http://www.cygnusx1.net/Supra/Librar...ection=EC&P=16 As for the throttle body, if you're uncomfortable with removing it (can't imagine why though) you may just spray carburetor cleaned into each of the metal nipples until it sprays in freely. It's best to do with the engine running so it doesn't pool up and try to pass through the engine all at once. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> Last edited by cre; 03-26-2012 at 07:50 PM.

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