This is topic wont pass smog in forum Tech Talk at Northern California Ford Owners  .


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Posted by SUMO (Member # 8553) on :
 
wont pass smog these are the result i change the coil,wires,sparkplugs what do you guys think it could be?


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[ October 05, 2011, 09:44 PM: Message edited by: SUMO ]
 
Posted by alexdel209 (Member # 9239) on :
 
looks like ur cats are weak and it wasnt heated up enough as you can tell by the dramatic difference between 15mph and 25 mph test
 
Posted by copcar (Member # 10113) on :
 
What mods are done to the car?
 
Posted by dvuspny (Member # 10949) on :
 
Old cat converters...timing is noted at 9° it should be 10° also can have vacuum leaks...check and squeeze all the vacuum hoses for cracking. Even the vacuum caps look fine but show cracking or deterioration if you gently squeeze these items. Evap off the intake is a common over looked items well. Dirty egr....causes an internal vacuum leak. Pcv valve grommet gets rock hard and needs to be soft and plyable to seal correctly.
 
Posted by SUMO (Member # 8553) on :
 
quote:
Originally posted by copcar:
What mods are done to the car?
Small stuff like headers pullys and cold air intake
 
Posted by rollin5ive0 (Member # 8592) on :
 
SUMO I GOT A GOOD CAT PIPE PASSED SMOG 7 MONTHS AGO AND THEN WAS TAKEN OFF AND STORED INSIDE COME GET IT AT MY SHOP
 
Posted by FivePTSlow (Member # 7682) on :
 
At a glance I would say bad Cats for sure. Other problems like vacuum leaks in my experience wouldn't cause that bad of emmisions.
 
Posted by CobraCoupe (Member # 7233) on :
 
looks like the guy ran it in 2nd gear for the 15mph and then kept it in 2nd for the 25mph, BAR says if the engine being tested is greater than 3.0l you can test in 1st and then shift to 2nd for 25mph, i bet you if you get those cats nice and warm and have him test it in 1st for 15 then 2nd for 25 it will pass....
 
Posted by SUMO (Member # 8553) on :
 
Thanks guys for all the info
 
Posted by Stangn5oh (Member # 10875) on :
 
quote:
Originally posted by SUMO:
quote:
Originally posted by copcar:
What mods are done to the car?
Small stuff like headers pullys and cold air intake
Do your headers have a carb plate on them, pullys work your motor alot more at any rpm and cuts your mortor life in half. And just the cai alone shouldnt pass visual.
 




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