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Since i collected my, standard engine wise, S15 from Liverpool docks, it has started, idled, and rev'd perfectly fine. Being as it hasn't been road legal, the only 'test drive' i have managed to do is to the top of my road and back :rotfl:
This is where i noticed, when it comes on boost it begins to hesitate, and splutter, still boosting and revving through the rev range but a definite lack of power. a feeling of being held back if you will.
I put this to the back of my mind as i know of a lot of fresh imports needing a good run to blow out the cobwebs, and my S15 had been sitting for quite a number of weeks at the docks in Japan. it was also low on fuel, which was now pretty old too. maybe it just needed a good run, and a tank of v-power when it was road legal?
i carried on with modifying it as i was waiting to register it, and i fitted a FMIC, apex intake pipe and apexi filter.
I proceeded to clean the engine bay, and as i moved a connector block, it revealed this
The 3 wires to the o2 sensor on the turbo elbow were broken.
Could i have found the problem? would the o2 sensor cause it to run like this?
I repaired the wires, 1 black wires and 2 white.
black to black, obviously, but the two white wires were not marked up. in the past on other cars i have replaced faulty o2 sensors with a universal o2 sensor, and the white wires do not seem to matter where you connect them.
I test drove it again and it hadnt seemed to of made a difference. maybe the o2 sensor is faulty/white wires not wired correctly.
Now today my registration and tax came in the post so it was ready for a real test drive! first destination - Shell for some v-power :thumbs:
i then took it on a long run, with it still displaying the same fault. as it comes on boost it splutters, and hesitates, the power being held back.
throwing up some ideas in my head of what it could be:
- knackered/fouled up spark plugs? (not checked yet)
- now faulty o2 sensor?
- fault mass air flow sensor?
anyone had the same problem?
I intend to spend tomorrow finding out the problem, so all your input would be great
This is where i noticed, when it comes on boost it begins to hesitate, and splutter, still boosting and revving through the rev range but a definite lack of power. a feeling of being held back if you will.
I put this to the back of my mind as i know of a lot of fresh imports needing a good run to blow out the cobwebs, and my S15 had been sitting for quite a number of weeks at the docks in Japan. it was also low on fuel, which was now pretty old too. maybe it just needed a good run, and a tank of v-power when it was road legal?
i carried on with modifying it as i was waiting to register it, and i fitted a FMIC, apex intake pipe and apexi filter.
I proceeded to clean the engine bay, and as i moved a connector block, it revealed this
The 3 wires to the o2 sensor on the turbo elbow were broken.
Could i have found the problem? would the o2 sensor cause it to run like this?
I repaired the wires, 1 black wires and 2 white.
black to black, obviously, but the two white wires were not marked up. in the past on other cars i have replaced faulty o2 sensors with a universal o2 sensor, and the white wires do not seem to matter where you connect them.
I test drove it again and it hadnt seemed to of made a difference. maybe the o2 sensor is faulty/white wires not wired correctly.
Now today my registration and tax came in the post so it was ready for a real test drive! first destination - Shell for some v-power :thumbs:
i then took it on a long run, with it still displaying the same fault. as it comes on boost it splutters, and hesitates, the power being held back.
throwing up some ideas in my head of what it could be:
- knackered/fouled up spark plugs? (not checked yet)
- now faulty o2 sensor?
- fault mass air flow sensor?
anyone had the same problem?
I intend to spend tomorrow finding out the problem, so all your input would be great