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tuning for emissions.

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Old Jun 23, 2004 | 11:24 AM
  #1  
devilfish's Avatar
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From: Sweden
tuning for emissions.

In Sweden (where I came from ), whe got a kind of "sniffer" test. Where the car idles and they take som mesures.
If you use a agressiv camshaft, is it possible to tune the lower VE and closed TPS timing tabels to make it more easy to pass test like that?
Then just swap chip on your way home?
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Old Jun 23, 2004 | 11:51 PM
  #2  
gta324's Avatar
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From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Yes.. I'm going to do that next week, I did some playing around when I was at musclecars with their equipment and I got some good results, now I've tuned in the car alot more so I'll know how it goes soon...

there is alot more than VE and timing at idle

Otherwise force it into go open loop and make it go lean to pass emission...

Now there are a gas analyser on the Chistmas list

/N.
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Old Jun 24, 2004 | 02:48 AM
  #3  
devilfish's Avatar
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From: Sweden
nice Yeah I tought about force it into go open loop also. And lower the timing. Then change the target A/F in the ecm.
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