95 civic d16a GA emissions problem
#1
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95 civic d16a GA emissions problem
Ok guys and girls
My car is failing to the point that I'm lost
100% stock D16A block
2.5" exhaust from cat back
Action 2md clutch and 10lb fly
Short ram intake
NOx ppm
25/25 test
Reading= 3946
Allowed=1072
50/15 test
Reading=4469
Allowed=1186
What I have done-
Pcv valve
O2
Cat (cat max 2.5" in/out)
Plugs, wires, cap, and button
Fuel system treatment ( throttle treetment, induction treetment, and injector treetment
I even tried some of that emissions pass crap at the parts store
I can retard the timeing all the way at the dizzy and pass the 25/25
But I still fail the 50/15 test...
Thanks for any help
This **** is killing me
Jeremie
My car is failing to the point that I'm lost
100% stock D16A block
2.5" exhaust from cat back
Action 2md clutch and 10lb fly
Short ram intake
NOx ppm
25/25 test
Reading= 3946
Allowed=1072
50/15 test
Reading=4469
Allowed=1186
What I have done-
Pcv valve
O2
Cat (cat max 2.5" in/out)
Plugs, wires, cap, and button
Fuel system treatment ( throttle treetment, induction treetment, and injector treetment
I even tried some of that emissions pass crap at the parts store
I can retard the timeing all the way at the dizzy and pass the 25/25
But I still fail the 50/15 test...
Thanks for any help
This **** is killing me
Jeremie
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Re: 95 civic d16a GA emissions problem
it sounds to be running rich or if it is smoking blue smoke "oil" it wont pass either. ever hear of seafoam its at local parts stores as well. my eg i had only would pass if i used it for some reason. and it def works better than other crappy cleaners. other than that maybe like a general tune up could help prob
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Re: 95 civic d16a GA emissions problem
Full tune up was done
No smoke
No cel codes
The 50/15 test is the second part of the test
3ed gear 1900 +or- rpm's
It's obd1 so it's a tail pipe sniffer
What would happen if I created an exhaust leak????
I'm out of ideas yall
No smoke
No cel codes
The 50/15 test is the second part of the test
3ed gear 1900 +or- rpm's
It's obd1 so it's a tail pipe sniffer
What would happen if I created an exhaust leak????
I'm out of ideas yall
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Re: 95 civic d16a GA emissions problem
still didnt answer my question... what does this test look for? nox ppm?
#9
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Re: 95 civic d16a GA emissions problem
Items that contribute to NoPPM failure for your car:
TIMING (as in is your timing belt off a tooth?)
Catalytic convertor effectiveness (2.5 hi flo might not be ideal)
Cooling system (does main fan work? T-stat opening soon enough? Any coolant leaks?)
Tune up, o2 sensor, etc. is more effective upon CO and HC readings - not so much on NoPPM.
TIMING (as in is your timing belt off a tooth?)
Catalytic convertor effectiveness (2.5 hi flo might not be ideal)
Cooling system (does main fan work? T-stat opening soon enough? Any coolant leaks?)
Tune up, o2 sensor, etc. is more effective upon CO and HC readings - not so much on NoPPM.
#10
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Re: 95 civic d16a GA emissions problem
Timing
Timing is good. However I have a skunk 2 cam gear and I know it's not at tdc. But it has been set up like this for 3+ years and have never been a problem...
Cat
Brand new cat max. Gotta check the temps to make sure it's good... talked to an emissions place and they told me to check temp before and after the cat. And that it should be at least 100 deg hotter after the cat. So I'll check that
Cooling
Sorry forgot that part. Has a new thermostat and all new coolant + water wetter everything working great on that end
Nox ppm = nitrus oxide parts per million
Timing is good. However I have a skunk 2 cam gear and I know it's not at tdc. But it has been set up like this for 3+ years and have never been a problem...
Cat
Brand new cat max. Gotta check the temps to make sure it's good... talked to an emissions place and they told me to check temp before and after the cat. And that it should be at least 100 deg hotter after the cat. So I'll check that
Cooling
Sorry forgot that part. Has a new thermostat and all new coolant + water wetter everything working great on that end
Nox ppm = nitrus oxide parts per million
#11
Re: 95 civic d16a GA emissions problem
Items that contribute to NoPPM failure for your car:
TIMING (as in is your timing belt off a tooth?)
Catalytic convertor effectiveness (2.5 hi flo might not be ideal)
Cooling system (does main fan work? T-stat opening soon enough? Any coolant leaks?)
Tune up, o2 sensor, etc. is more effective upon CO and HC readings - not so much on NoPPM.
TIMING (as in is your timing belt off a tooth?)
Catalytic convertor effectiveness (2.5 hi flo might not be ideal)
Cooling system (does main fan work? T-stat opening soon enough? Any coolant leaks?)
Tune up, o2 sensor, etc. is more effective upon CO and HC readings - not so much on NoPPM.
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