running after bluebird swap. looking for ideas.
hey guys
I drove my car for the first time after my bluebird swap and it seems to run rough especially in low rpms and idle. I am using the u12 JDM ecu, jdm o2 sensor, jdm IACV, USDM TPS, and USDM maf. I feel like there is still something wrong which is causing it to not run as good. When i try to rev it in neutral, it sometimes does nothing as if experiencing throttle cut, until i push harder on the gas and get it to rev higher up the rpm.
Symptoms are
-car dies occasionally (happened about 3 times today)
-idle regardless of temp. sometimes it idles at 1.5 - 2k steadily then it will drop to about 1k and become unstable until it dies. the higher the RPM the more steady the idle is.
-When i am in gear already and i give it gas in the lower rpms, the car jerks due to cutting out? (throttle/fuel cut? ) it cuts in and out which causes it to jerk, but only happens in the lower rpms. once i hit 3k, it becomes steady. I have a feeling this cant be good for my clutch.
-it sounds loud and rough.
What i think the problem is
-vacuum leaks?
-exhaust needs to be done (it is leaking near the factory u12 downpipe and where it connects to my old exhaust system, big leak).
-timing, which is hard to set right now seeing how crappy it is idling.
it appears to run rough regardless how high up i go (RPM), but it runs better and doesn't cut out the higher i go.
anyone have any ideas besides the things i have mentioned? I'm gonna head out and try a to fix leaks here and there first thing tomorrow morning and would like to consider more people's ideas.
could this be because i am using the usdm maf with the jdm ecu?
suggestions and ideas are welcome and appreciated.
thanks guys.
I drove my car for the first time after my bluebird swap and it seems to run rough especially in low rpms and idle. I am using the u12 JDM ecu, jdm o2 sensor, jdm IACV, USDM TPS, and USDM maf. I feel like there is still something wrong which is causing it to not run as good. When i try to rev it in neutral, it sometimes does nothing as if experiencing throttle cut, until i push harder on the gas and get it to rev higher up the rpm.
Symptoms are
-car dies occasionally (happened about 3 times today)
-idle regardless of temp. sometimes it idles at 1.5 - 2k steadily then it will drop to about 1k and become unstable until it dies. the higher the RPM the more steady the idle is.
-When i am in gear already and i give it gas in the lower rpms, the car jerks due to cutting out? (throttle/fuel cut? ) it cuts in and out which causes it to jerk, but only happens in the lower rpms. once i hit 3k, it becomes steady. I have a feeling this cant be good for my clutch.
-it sounds loud and rough.
What i think the problem is
-vacuum leaks?
-exhaust needs to be done (it is leaking near the factory u12 downpipe and where it connects to my old exhaust system, big leak).
-timing, which is hard to set right now seeing how crappy it is idling.
it appears to run rough regardless how high up i go (RPM), but it runs better and doesn't cut out the higher i go.
anyone have any ideas besides the things i have mentioned? I'm gonna head out and try a to fix leaks here and there first thing tomorrow morning and would like to consider more people's ideas.
could this be because i am using the usdm maf with the jdm ecu?
suggestions and ideas are welcome and appreciated.
thanks guys.
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