Well here's my dilemma... I drive a golf mk1 2l 8v turbo, the car was overhauled 2 weeks back... Today I saw my no 4 injector leaking from the rail, so I bought new injector seals and closed it up tight with no leaks! I drove 10km's with it and then I could hear busting noises in my exhaust, it wasn't so bad at first, now its missfiring, but when u floor it, it seems to go smoothly until u back of the gas then it misses again... Please note the car has new cambelt, new fan belt, the coil and everything works, we checked the plugs and even put new plugs ... It ran smoothley at first for like the first 5km's then it started to miss... The car starts on the turn without touching the gas and idles. Only when I press the gas then it starts to miss fire... The injectors can't be blocked since when I really press it, it doesn't missfire anymore... There is a strong fuel smell coming from my exhaust... I'm not sure I
f the car needs to be dyno'd to set the air/fuel ratio again? Please help.
Nope, no smoke at all... Just back firing... If I press it hard from say 1500rpm it misses abit then goes smoothley again... If I am in gear and slowing down it backfires from the exhuast... The injectors are fine as they have been tested. The car was running 100% until I saw the injector leaking by where it joins the fuel rail, then I replaced the O-ring on the injectors, put it back, it ran fine for like 5km's then started missing... The battery and oil light should normally come on when the ignition is on before starting the car, but now just the oil light comes on quick and goes back off, the battery light doesn't even come on at all now before starting the car... Iv checked coil, bougi cords, put new plugs although the old 1 was 2 weeks old, there is no fuel leaks or anything... The car does have a small leak inbetween the branch and turbo, it had it for like 2 weeks now but I don't see how that can cause the car to miss. Anycase that branch leak shall be sorted out on monday, I think the car needs to be dyno tuned as its got a management system so the air/fuel ratio needs to be set properly again after replacing the O-rings... Any other suggestions?
We did, took of the fuel rail, cleaned it up, put it back and still miss fires. Oh also forgot to mention... Normally when I have the ignition on before starting the car, the battery light would come on as well as the oil light, then when I start it, it goes off (which is a normal thing) but now when I got the ignition on, the battery light doesn't come on at all and the oil light comes on quickley and goes back off before even starting the car... This is confusing because we didn't touch any wiring or anything at all except for the injector plugs.
It's got to be related to something you did, that's just too coincidental!.. Look at it again!.. Check wire harness or anything you may have distributed...
This morning the car would start and idle but when I press the gas it switches off... My battery voltage is also showing very low, I put it for charging, and I will re checked the wiring etc.
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Nope, no smoke at all... Just back firing... If I press it hard from say 1500rpm it misses abit then goes smoothley again... If I am in gear and slowing down it backfires from the exhuast... The injectors are fine as they have been tested. The car was running 100% until I saw the injector leaking by where it joins the fuel rail, then I replaced the O-ring on the injectors, put it back, it ran fine for like 5km's then started missing... The battery and oil light should normally come on when the ignition is on before starting the car, but now just the oil light comes on quick and goes back off, the battery light doesn't even come on at all now before starting the car... Iv checked coil, bougi cords, put new plugs although the old 1 was 2 weeks old, there is no fuel leaks or anything... The car does have a small leak inbetween the branch and turbo, it had it for like 2 weeks now but I don't see how that can cause the car to miss. Anycase that branch leak shall be sorted out on monday, I think the car needs to be dyno tuned as its got a management system so the air/fuel ratio needs to be set properly again after replacing the O-rings... Any other suggestions?
Car was running 100%.. Then you re-sealed an injector.. Now car not running 100%.. Recheck your work!!
We did, took of the fuel rail, cleaned it up, put it back and still miss fires. Oh also forgot to mention... Normally when I have the ignition on before starting the car, the battery light would come on as well as the oil light, then when I start it, it goes off (which is a normal thing) but now when I got the ignition on, the battery light doesn't come on at all and the oil light comes on quickley and goes back off before even starting the car... This is confusing because we didn't touch any wiring or anything at all except for the injector plugs.
It's got to be related to something you did, that's just too coincidental!.. Look at it again!.. Check wire harness or anything you may have distributed...
This morning the car would start and idle but when I press the gas it switches off... My battery voltage is also showing very low, I put it for charging, and I will re checked the wiring etc.