Failed emissions - plz help
#1
Failed emissions - plz help
Hi all,
I am new to join HT, although I've done a search and notice that RotaryBzzzz is the guy to talk to about this stuff, but anyways. I have an 88 Accord Lxi (no mods) 5spd. and failed the emissions test twice over CO%.
My numbers are as follows...
2nd trip to jiffy lube:
25/25 test
HC ppm - 44 (181 allowed) pass
CO% - 1.41 (1.16 allowed) fail
NO ppm - 146 (1313 allowed) pass
rpm - 2861 (3000 max)
CO+CO2 - 14.0 (6.0 min)
50/15 test
HC ppm - 13 (187 allowed) pass
CO% - 0.01 (1.05 allowed) pass
NO ppm - 693 (1438 allowed) pass
rpm - 1763 (3000 max)
CO+CO2 - 12.5 (6.0 min)
he took the old test, but the reading from that one (the first time i went in) the CO% was 2.21 (on 25/25 test). I did the following between the 1st and 2nd testing:
-changed plugs, wires, rotor & cap (honda dealer parts)
-removed air filter and resonator
-changed oil
it brought the CO% down considerably, but it still isn't enough. i was told that cleaning the EGR ports and TB would be the best bet. i will try that this weekend. to see if that helps.
can anyone think of anything else that could help it run less thick as it's doing?
Thanks for your help.
I am new to join HT, although I've done a search and notice that RotaryBzzzz is the guy to talk to about this stuff, but anyways. I have an 88 Accord Lxi (no mods) 5spd. and failed the emissions test twice over CO%.
My numbers are as follows...
2nd trip to jiffy lube:
25/25 test
HC ppm - 44 (181 allowed) pass
CO% - 1.41 (1.16 allowed) fail
NO ppm - 146 (1313 allowed) pass
rpm - 2861 (3000 max)
CO+CO2 - 14.0 (6.0 min)
50/15 test
HC ppm - 13 (187 allowed) pass
CO% - 0.01 (1.05 allowed) pass
NO ppm - 693 (1438 allowed) pass
rpm - 1763 (3000 max)
CO+CO2 - 12.5 (6.0 min)
he took the old test, but the reading from that one (the first time i went in) the CO% was 2.21 (on 25/25 test). I did the following between the 1st and 2nd testing:
-changed plugs, wires, rotor & cap (honda dealer parts)
-removed air filter and resonator
-changed oil
it brought the CO% down considerably, but it still isn't enough. i was told that cleaning the EGR ports and TB would be the best bet. i will try that this weekend. to see if that helps.
can anyone think of anything else that could help it run less thick as it's doing?
Thanks for your help.
#2
Re: Failed emissions - plz help (88AccordLxi)
Try resetting the ecu right before you take your car in for testing. Also, maybe you need a new catalytic converter. Try borrowing one from a friend if you don't have the money.
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