Decatted and remapped - rich and fumes normal?
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Decatted and remapped - rich and fumes normal?
Ok, so I guessed that the fumes are normal as there are no cats to deal with them but I'm amazed how rich my car it at tickover. In traffic the cabin fills with exhaust fumes after a minute or so, is this normal?
I assume the rich (like my old metro with the choke out) tickover is a result of there being no cats? When I drop my lad off at school I near choke everyone when I stop at the kerb
Car is a Hatch STi with a full H&S decat and Mishimoto CAI.
TIA
Ian
I assume the rich (like my old metro with the choke out) tickover is a result of there being no cats? When I drop my lad off at school I near choke everyone when I stop at the kerb
Car is a Hatch STi with a full H&S decat and Mishimoto CAI.
TIA
Ian
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i had this after decatting but it's because I re-used the donut gasket. Once the new donut went in I wasn't getting knocked out by the fumes in the cabin anymore.
did you get proper subaru gaskets fitted at the time or just re-use the old ones or (even worse!) use the ebay type gaskets?
did you get proper subaru gaskets fitted at the time or just re-use the old ones or (even worse!) use the ebay type gaskets?
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Ok, so I guessed that the fumes are normal as there are no cats to deal with them but I'm amazed how rich my car it at tickover. In traffic the cabin fills with exhaust fumes after a minute or so, is this normal?
I assume the rich (like my old metro with the choke out) tickover is a result of there being no cats? When I drop my lad off at school I near choke everyone when I stop at the kerb
Car is a Hatch STi with a full H&S decat and Mishimoto CAI.
TIA
Ian
I assume the rich (like my old metro with the choke out) tickover is a result of there being no cats? When I drop my lad off at school I near choke everyone when I stop at the kerb
Car is a Hatch STi with a full H&S decat and Mishimoto CAI.
TIA
Ian
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Ok, lots of suggestions
Yes it had an updated pump fitted.
I assume new gaskets were used as it was a complete, new turbo back fitted.
Mine smells all the time, its no better after 120mile run than first thing on the recent cold mornings.
I don't have a wideband. Its, hopefully, booked in with the mapper at the end of the month. It was only mapped at the start of august so it might be the lambda has gone since then.
Ive never had a decatted car so I didn't know whether this was normal.
Yes it had an updated pump fitted.
I assume new gaskets were used as it was a complete, new turbo back fitted.
Mine smells all the time, its no better after 120mile run than first thing on the recent cold mornings.
I don't have a wideband. Its, hopefully, booked in with the mapper at the end of the month. It was only mapped at the start of august so it might be the lambda has gone since then.
Ive never had a decatted car so I didn't know whether this was normal.
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Ok, so I guessed that the fumes are normal as there are no cats to deal with them but I'm amazed how rich my car it at tickover. In traffic the cabin fills with exhaust fumes after a minute or so, is this normal?
I assume the rich (like my old metro with the choke out) tickover is a result of there being no cats? When I drop my lad off at school I near choke everyone when I stop at the kerb
Car is a Hatch STi with a full H&S decat and Mishimoto CAI.
TIA
Ian
I assume the rich (like my old metro with the choke out) tickover is a result of there being no cats? When I drop my lad off at school I near choke everyone when I stop at the kerb
Car is a Hatch STi with a full H&S decat and Mishimoto CAI.
TIA
Ian
I have similar, WRX-S Hatch with ej20 bugeye fitted, AVCS, Fuel rails, FPR, Decat, Syvecs and all mapped
Mine is popping constantly at speed off throttle as well, so definitely over fuelling. It's back in now to be looked at. Any info greatly appreciated ;-)
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daF1rby - is your syvecs fitted with the wideband sensor? If so you may just need your closed loop fuelling setup.
Fatboy, has the car been mapped for the mishimoto intake? Only times I've had fumes into the cabin is when the donut gasket has gone in the downpipe - other than that all smells go out the back and even then it wasn't overly powerful.
Fatboy, has the car been mapped for the mishimoto intake? Only times I've had fumes into the cabin is when the donut gasket has gone in the downpipe - other than that all smells go out the back and even then it wasn't overly powerful.
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Interestingly Matt C had the breather arrangement changed on his hatch to solve the same problem. Apparently it's overly complex
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daF1rby - is your syvecs fitted with the wideband sensor? If so you may just need your closed loop fuelling setup.
Fatboy, has the car been mapped for the mishimoto intake? Only times I've had fumes into the cabin is when the donut gasket has gone in the downpipe - other than that all smells go out the back and even then it wasn't overly powerful.
Fatboy, has the car been mapped for the mishimoto intake? Only times I've had fumes into the cabin is when the donut gasket has gone in the downpipe - other than that all smells go out the back and even then it wasn't overly powerful.
Currently in the process of getting another ej20 STi engine fitted
And I bought this one so I didn't have the chocolate piston problems! Ha ha! :-/
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