Emission Test Results
#1
08-28-08, 11:18 AM
Emission Test Results
Hi,
I just had my car tested for the required emissions levels today. I just rebuilt the motor, and so far it runs well except for a miss at idle. I was wondering if the results from the emission testing could help diagnose the problem.
The results are as follows
High Speed (2484 rpm)
HC (ppm) 52
CO % 0.02
CO2 % 13.4
Idle (1057 rpm)
HC (ppm) 146
CO % 0.00
CO2 % 13.7
Thanks,
Jon
I just had my car tested for the required emissions levels today. I just rebuilt the motor, and so far it runs well except for a miss at idle. I was wondering if the results from the emission testing could help diagnose the problem.
The results are as follows
High Speed (2484 rpm)
HC (ppm) 52
CO % 0.02
CO2 % 13.4
Idle (1057 rpm)
HC (ppm) 146
CO % 0.00
CO2 % 13.7
Thanks,
Jon
#2
08-28-08, 04:31 PM
How old is the gas in the tank. Considering you just rebuilt the motor.
Casey
"http://www.driverdb.com/Sean McDonagh"
Casey
"http://www.driverdb.com/Sean McDonagh"
#3
08-28-08, 04:33 PM
Originally Posted by casey_wa
How old is the gas in the tank. Considering you just rebuilt the motor.
Casey
"http://www.driverdb.com/Sean McDonagh"
Casey
"http://www.driverdb.com/Sean McDonagh"
Thanks,
Jon
#4
08-28-08, 04:58 PM
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What kind of car/ Motor are we discussing?
The excessively low CO at idle indicates very lean fuel....Vacuum leak, stuck injector, or misadjusted carb.....Dependent on what we are talking about.
The excessively low CO at idle indicates very lean fuel....Vacuum leak, stuck injector, or misadjusted carb.....Dependent on what we are talking about.
#6
08-28-08, 07:48 PM
On the rebuild I upgraded the cam from the stock to the following with hydraulic lifters
Duration @ .050 Int 204 Exh 214 Lift int .420 exh .443
Lobe seperation int 107 Exh 117
The motor was bored .030 over and I replaced the stock dished pistons with a flat piston. The stock 4 barrrel carb was used on the new motor.
Thanks
Duration @ .050 Int 204 Exh 214 Lift int .420 exh .443
Lobe seperation int 107 Exh 117
The motor was bored .030 over and I replaced the stock dished pistons with a flat piston. The stock 4 barrrel carb was used on the new motor.
Thanks
