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94 e420 Failed Smog ; Please HELP
Please HELP- 94 e420 FAILED SMOG Again
My 1994 e420 keeps Failing NV Required Smog Test: for the third time. So far I have changed spark plugs ( Bosch F8DC4), spark plug wires, 2 New Bosch dist. Cap. New Bosch rotor(2), coolant level sensor, coolant temp sensor. Here are my test results,,,,,,,,, Test Parameter. Result. Additional info. Idle speed CO. 9.99 %. Greater than 1.2 % High speed CO. 8.24 % Greater than 1.2 % Idle speed HC. 671 Greater than 220 parts per mill. High speed HC. 425 Greater than 220 parts per mill. Also; the smog check " technician" says engine is getting 'way too much fuel' pumped into the engine - so much so that it is also causing a "Misfire" because of Excessive fuel. OK guys: Please Help, Advise what to repair, replace ; as I really Need to at least PASS smog test !!!!!!! THANKS ALL for Help, Suggestions, Recommendations etc. Chance |
#2
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Check codes. I suspect you will find something with a MAP or MAF sensor out of range.
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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress. |
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