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D15z8 vtec testing


Mp3civic
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Hi im new to the forum proud owner of a red MB3 vtec-e from Sweden slmost rust free execpt key hole for the trunk.

 

i was a owner of the same car for a few years back and i remember that there is an econo light that is green for better gas consumption.

 

in my civic now the green light never appeara during drive. Only when i start up the car when all the dash lights light up and goes away.

 

im suspecting my vtec isnt working properly ( no CEL ) i tried to rev the car out and i feel an ” light omph ” with vtec.  But whats bothering me is my gas mileage sucks cuz the green light isnt working properly.

 

i tried ohm testing the vtec. I unplugged the cable used the cable from the solenoid and ground it to body of vtec same as car metal but no readings there. I might do it wrong but i need help to test it properly and what the testing acutally means. 

 

 

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  • 4 weeks later...

Wanted to update my scenario, reason why i had no CEL is because the previous owner removed the bulb i inserted a new bulb and got code 7 ( TPS sensor ) i bought a new one and calibrated it and now the vtec-e works. the other factor was that my air intake was ruptured and they had taped it before to hold, now i got a new one from the scrapyard and now the vtec-e works.

 

i asked my local honda dealer and that person said that the vtec-e goes on vaccum and vtec-e solenoid.

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  • 3 weeks later...

Good to hear you got it sorted. I ran an MA9 vtec-e for over 275000 miles, so have fond memories. It was killed off by a combination of tin worm (rust) and the London ULEZ emissions rules introduced a couple of years ago. I hope yours runs as well :)

 

One mod I did was to have a LED light up when the Vtec 'kicked' in, though by the end the kick was more of a light tap 🤣

 

 

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