Hi all,
I'm new on the threads, please forgive me for any noob-ish mistakes (and I'll try to learn quickly not to repeat any) - I'm trying to find answers to this problem and could really use your help. I will post as much information as I can think of at the moment but if there is anything I'm missing let me know and I'll try to get it to you. I recently bought the 1995 Honda Ballade (with a D15B engine swap) so anything I can't find I may have to talk to the previous owner.
I'm getting roughly 5.5km/L (~12.6mpg) and I drive it very conservatively (have to with that mpg!).
Additional info:
-the engine has been gas-flowed
-from what I can see I think there are larger fuel injectors
-composite head gasket
-Gotech MFI X engine management system
-aftermarket induction (which doesn't allow space for O2 sensor)
-bosch super 4 spark plugs
The previous owner was setting the car up for a turbo but never finished the project. He had tuned the car for that setup with a air-to-fuel ratio of ~17.
Since I've had the car:
-taken it back to the tuners and they set the AFR to ~14.2
-cleaned the air filter
-cleaned the throttle body
-put on Huco High Performance Racing HT leads
Miscellaneous:
-the fan belt is currently loose (affects alternator/spark?)
-spark plugs are covered in carbon - could this be the sole cause?
-there was some recent wiring work done on the sound system and the battery was disconnected - could this have reset the fuel maps?
-no check engine or warning lights have ever come on
When I received the car the exhaust was covered in carbon (which I don't get considering it had more air-per-fuel ratio?) and when I checked the spark plugs they were also covered in carbon soot. Unfortunately I wasn't able to sand them at the time.
So the questions I have...
1. Could dirty spark plugs be responsible for the whole problem?
2. Could the battery disconnect reset the fuel map?
Thank you so much in advance for the advice.
Brian
I'm new on the threads, please forgive me for any noob-ish mistakes (and I'll try to learn quickly not to repeat any) - I'm trying to find answers to this problem and could really use your help. I will post as much information as I can think of at the moment but if there is anything I'm missing let me know and I'll try to get it to you. I recently bought the 1995 Honda Ballade (with a D15B engine swap) so anything I can't find I may have to talk to the previous owner.
I'm getting roughly 5.5km/L (~12.6mpg) and I drive it very conservatively (have to with that mpg!).
Additional info:
-the engine has been gas-flowed
-from what I can see I think there are larger fuel injectors
-composite head gasket
-Gotech MFI X engine management system
-aftermarket induction (which doesn't allow space for O2 sensor)
-bosch super 4 spark plugs
The previous owner was setting the car up for a turbo but never finished the project. He had tuned the car for that setup with a air-to-fuel ratio of ~17.
Since I've had the car:
-taken it back to the tuners and they set the AFR to ~14.2
-cleaned the air filter
-cleaned the throttle body
-put on Huco High Performance Racing HT leads
Miscellaneous:
-the fan belt is currently loose (affects alternator/spark?)
-spark plugs are covered in carbon - could this be the sole cause?
-there was some recent wiring work done on the sound system and the battery was disconnected - could this have reset the fuel maps?
-no check engine or warning lights have ever come on
When I received the car the exhaust was covered in carbon (which I don't get considering it had more air-per-fuel ratio?) and when I checked the spark plugs they were also covered in carbon soot. Unfortunately I wasn't able to sand them at the time.
So the questions I have...
1. Could dirty spark plugs be responsible for the whole problem?
2. Could the battery disconnect reset the fuel map?
Thank you so much in advance for the advice.
Brian