- Fri May 27, 2016 3:17 pm
#359174
Hello forum members 
I hope someone will take the time to read my problem and i hope you will understand my english.
I bought a 94 eg with d15z1 with 90 hp (i guess its VX in USA, i'm from Europe). The previous owner said that check engine light was on for a few months and i assumed the EGR was clogged and I liked the car since there arent many of vtec-e around here so i just bought it with the CEL on
Since then, a year passed, i still havent fixed it.
It wasnt on all the time. If i started the car when cold, it would usually appear after first gear shift of before. But if it was at working temperature, and then turned the car off and on, cel was off for as long as I-read carefully now-kept accelerating. When i released the gas pedal (in whatever gear) and started decelerating the cel would come instantly on. The interesting thing is that if i accelerated with no cel on, and then put it in neutral before releasing the gas pedal, cel wouldnt come on. So, basically i could drive like that (turn off/on the car when at working temperature,and when driving put in neutral before releasing gas pedal) without cel on. Another interesting thing, when driving without cel on and holding it at 1500 rpm, it would (i dont know the appropriate word so i'll try to explain) act like i released and pushed the gas pedal and repeat that fast. But only at 1500 and if i would pushed the pedal harder, it would just accelerate further. But!! When the cel was ON, this wasnt happening. I could drive at 1500 without the mentioned "recoil". With or without cel, car runs rather fine, no issues at all (except the fact that when hot, sometimes i have to wait to turn the car, guess its main relay), mpg is fine (cca 6 L/100 km, dont know how many mpg that is, but i think its just fine since its mostly city driving and in "red zone rpm" on daily base). I passed the exhaust gasses check with no problem.
First I have read the cel code 48-lean air fuel. It was the only code blinking. The fuel pressure was 1.5 bar with throttle, so I replaced the fuel pressure regulator and the fuel pump. The pressure was then ok, but cel still on. I got my hands on another O2 sensor (worked without cel in "donor car"), but cel still on. Then another O2 sensor, again no change. TB and EGR were cleaned, IACV, MAP, temperature, everything replaced or cleaned. Tried another airbox, even with no airbox. Timing belt is installed properly. And after all of that, the 48 still shines on my dashboard. I dont know whats left to change or check other then trying ecu from another vx, but i guess it the ecu was wrong, the car would run good at all (but im not an expert).
To be honest, i stopped being worried about this and continue to work on car. Another interesting thing. I replaced my original 4-1 header with cat in it with 4-1 header without cat (from d14a3) and putted the whale penis intake and the car continue to act like before. A month ago, i installed 4-2-1 from D16A9 and now the cel is on all the time. But mpg and everything stayed the same, so fuck it.
If there is someone who has some advice, please share it. Like I said, it doesnt actually bother me anymore that much because i wasted to many time on fixing it already , but it would be nice to get rid of that issue.
Thanks in advance
I hope someone will take the time to read my problem and i hope you will understand my english.I bought a 94 eg with d15z1 with 90 hp (i guess its VX in USA, i'm from Europe). The previous owner said that check engine light was on for a few months and i assumed the EGR was clogged and I liked the car since there arent many of vtec-e around here so i just bought it with the CEL on
Since then, a year passed, i still havent fixed it.It wasnt on all the time. If i started the car when cold, it would usually appear after first gear shift of before. But if it was at working temperature, and then turned the car off and on, cel was off for as long as I-read carefully now-kept accelerating. When i released the gas pedal (in whatever gear) and started decelerating the cel would come instantly on. The interesting thing is that if i accelerated with no cel on, and then put it in neutral before releasing the gas pedal, cel wouldnt come on. So, basically i could drive like that (turn off/on the car when at working temperature,and when driving put in neutral before releasing gas pedal) without cel on. Another interesting thing, when driving without cel on and holding it at 1500 rpm, it would (i dont know the appropriate word so i'll try to explain) act like i released and pushed the gas pedal and repeat that fast. But only at 1500 and if i would pushed the pedal harder, it would just accelerate further. But!! When the cel was ON, this wasnt happening. I could drive at 1500 without the mentioned "recoil". With or without cel, car runs rather fine, no issues at all (except the fact that when hot, sometimes i have to wait to turn the car, guess its main relay), mpg is fine (cca 6 L/100 km, dont know how many mpg that is, but i think its just fine since its mostly city driving and in "red zone rpm" on daily base). I passed the exhaust gasses check with no problem.
First I have read the cel code 48-lean air fuel. It was the only code blinking. The fuel pressure was 1.5 bar with throttle, so I replaced the fuel pressure regulator and the fuel pump. The pressure was then ok, but cel still on. I got my hands on another O2 sensor (worked without cel in "donor car"), but cel still on. Then another O2 sensor, again no change. TB and EGR were cleaned, IACV, MAP, temperature, everything replaced or cleaned. Tried another airbox, even with no airbox. Timing belt is installed properly. And after all of that, the 48 still shines on my dashboard. I dont know whats left to change or check other then trying ecu from another vx, but i guess it the ecu was wrong, the car would run good at all (but im not an expert).
To be honest, i stopped being worried about this and continue to work on car. Another interesting thing. I replaced my original 4-1 header with cat in it with 4-1 header without cat (from d14a3) and putted the whale penis intake and the car continue to act like before. A month ago, i installed 4-2-1 from D16A9 and now the cel is on all the time. But mpg and everything stayed the same, so fuck it.
If there is someone who has some advice, please share it. Like I said, it doesnt actually bother me anymore that much because i wasted to many time on fixing it already
, but it would be nice to get rid of that issue. Thanks in advance
