Emission problems
mike01166
08-13-2005, 11:33 PM
My 93 Jimmy failed emissions terribly. Here are the results:
HC (PPM)
Limit: 160
Emissions: 628
FAIL
CO (%)
Limit: 3.01
Emissions: 11.68
FAIL
NOx (PPM)
Limit: 3907
Emissions: 0
Pass Although it passed, something is wrong, it shouldnt have been 0.
So, what should I begin to do to make this rust bucket pass emission tests?
HC (PPM)
Limit: 160
Emissions: 628
FAIL
CO (%)
Limit: 3.01
Emissions: 11.68
FAIL
NOx (PPM)
Limit: 3907
Emissions: 0
Pass Although it passed, something is wrong, it shouldnt have been 0.
So, what should I begin to do to make this rust bucket pass emission tests?
BlazerLT
08-14-2005, 01:46 PM
Let's start fro the beginning, is the engine completely tuned up?
mike01166
08-14-2005, 02:22 PM
what do you exactly mean tuned up.
we changed oil, air filter, oil filter, stuff like that?
we changed oil, air filter, oil filter, stuff like that?
BlazerLT
08-14-2005, 02:55 PM
what do you exactly mean tuned up.
we changed oil, air filter, oil filter, stuff like that?
No....
Plugs gapped properly
Wires
Cap & Rotor
Base Timing set with timing wire disconnected from PCM under the glove compartment
EGR Cleaned
PCV Valve replaced
Fuel injector cleaner run through it.
If none of these haven't been done for a while, you can see where your failure is coming from.
we changed oil, air filter, oil filter, stuff like that?
No....
Plugs gapped properly
Wires
Cap & Rotor
Base Timing set with timing wire disconnected from PCM under the glove compartment
EGR Cleaned
PCV Valve replaced
Fuel injector cleaner run through it.
If none of these haven't been done for a while, you can see where your failure is coming from.
blazee
08-14-2005, 05:53 PM
mike01166
08-14-2005, 10:58 PM
wow thanks blazee your awesome you to blazerlt
blazee
08-14-2005, 11:07 PM
You're welcome :)
Automotive Network, Inc., Copyright ©2026