This is topic SMOG help: 98 Cobra in forum Tech Talk at Northern California Ford Owners  .


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Posted by 98Snake (Member # 183) on :
 
The car is a 98 cobra, and has passed the previous 3 times with the following mods on the stock longblock:

Vortech V-1 S-trim (GT impeller)
3.33 Pulley
AFM Powerpipe
Pro-M 80 MAF
42lb Injectors
T-rex fuel pump
Kenne-Bell Boost-a-Spark
Adjustable FPR
Bassani catted X-pipe

Unfortunately I did not save the results from the previous tests. The car does not throw any codes. From what I can gather from other members' posts with similar results as mine, I should be able to pass with some new cats and O2 sensors. One problem I seem to have, was during the OBD2 diagnostic scan, it read "Not Supported", which seemed to throw off the Smog tech.

Any ideas, comments or recommendations would be greatly appreciated. Thanks in advance







[ September 09, 2010, 07:09 PM: Message edited by: 98Snake ]
 

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Posted by Blind (Member # 3052) on :
 
with the NOX being too high, I would look closely at your vacuum routing and the EGR system, the EVP I think it's called next to the EGR may be bad.
 

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Posted by 98Snake (Member # 183) on :
 

quote:

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Originally posted by Blind:
with the NOX being too high, I would look closely at your vacuum routing and the EGR system, the EVP I think it's called next to the EGR may be bad.

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quote:

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Originally posted by 98Snake:

quote:

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Originally posted by Blind:
with the NOX being too high, I would look closely at your vacuum routing and the EGR system, the EVP I think it's called next to the EGR may be bad.

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Thanks I will check the EGR system. Any way to tell if the EVP is bad, or should I just replace it anyways. Forgot to mention the car has 92000 miles, about 50000 with the blower.

Any thoughts about the OBD2 "not supported" readings?

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quote:

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Originally posted by fasthatch:

quote:

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Originally posted by 98Snake:

quote:

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Originally posted by Blind:
with the NOX being too high, I would look closely at your vacuum routing and the EGR system, the EVP I think it's called next to the EGR may be bad.

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Thanks I will check the EGR system. Any way to tell if the EVP is bad, or should I just replace it anyways. Forgot to mention the car has 92000 miles, about 50000 with the blower.

Any thoughts about the OBD2 "not supported" readings?

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NOT SUPPORTED MEANS YOU PCM DOES NOT MOTIOR THOSE MONITERS
AN FORD HAS A PIG PROBLEM WITH EGR NOT WORKING
ONE OF THE MAIN THINGS IS THE DPFE GOES BAD ALOT

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