T O P I C R E V I E W
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norcalfiddy
Member # 11207
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posted
didnt pass cause the timing was off.
so if it redo the timing then it should pass?
everything else was good, but he wouldnt tell me if it will pass after i change the timing.
its a bone stock 89 lx with legal BBK shortys.
my HC messured at:
15mph 233 25mph 99
NO (PPM)
15mph 1232 25mph 651
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WILDMAN97
Member # 9138
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posted
You must not have paid him enough.
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JZTRK
Member # 7641
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posted
nox is super high set timing at 10deg. my boy's stang failed last month smog tech told him that his egr system was not working ect... I called B.S he borrowed my h pipe and adjusted his timing to 10 deg and took it back later that day almost no nox and his co% was almost non existent so a pair of new cats will do the trick just put some mileage on those bad boys 100mi or so will do the trick and then run it in
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blown95svt
Member # 8893
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posted
Nox is caused by high cylinder temps, this is caused by advanced timing, high cylinder compression, a lean running engine, faulty egr.
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VendicatedSN95
Member # 10671
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posted
quote: Originally posted by blown95svt: Nox is caused by high cylinder temps, this is caused by advanced timing, high cylinder compression, a lean running engine, faulty egr.
Nailed it. See also- Overheating/high engine temps
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