I know I posted this before but I still need some advice
08-06-2003, 12:54 PM
#1
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I know I posted this before but I still need some advice
I just got my Blitz FMIC installed and the car runs really bad. Got a CEL so the car is in limp mode for now. But when I reset the ECU and run the car hard it seems that the car falls on its face at 5500 rpm. Triple checked all the piping and connections and there arent any leaks. Got a stock up and down with stock boost on a stock boost controller. Anyone have any ideas. I got the CEL codes pulled and it said that Cylinders 1 and 2 are misfiring. EGTs are saoring whenever Im hitting boost which probably means Im running lean. Is my turbo running out of breath up top?? A few shops told me that it is and that I needed a boost controller to up the boost. Would this be wise?? I know there are a few guys here running Blitz front mounts and any help or advice is really really appreciated.
08-06-2003, 01:10 PM
#2
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Your ECU has no idea what's going on inside that pressurized intake of yours now.
FMIC's don't traditionally run very well with stock engine mapping at all.
Has you boost been affected by the FMIC installation?
If you're having a lean misfire - whoa... That's REALLY lean. I wouldn't suggest pounding the car anymore at all!
Get the supporting mods on there for the FMIC (turbo, injectors, pump, engine management) and tune that puppy!
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FMIC's don't traditionally run very well with stock engine mapping at all.
Has you boost been affected by the FMIC installation?
If you're having a lean misfire - whoa... That's REALLY lean. I wouldn't suggest pounding the car anymore at all!
Get the supporting mods on there for the FMIC (turbo, injectors, pump, engine management) and tune that puppy!
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08-06-2003, 01:12 PM
#3
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This may also have to do with the nature of the intake that you installed along with your FMIC.
Did you have the intake on before?
It may be throwing your MAF voltage WAY off the chart and confusing the ECU...
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Did you have the intake on before?
It may be throwing your MAF voltage WAY off the chart and confusing the ECU...
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08-06-2003, 01:12 PM
#4
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BTW, adding boost to this volatile situation would be a BAD IDEA!
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08-06-2003, 01:33 PM
#5
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adding a front mount with no type of EMS is always going to run you leaner. Also with a stock turbo, it's going to spool up slower, and have a hard time pushing enough air. I don't know of anyone else running a f/m right now with a stock turbo.
I'm also wondering what boost levels you're hitting now with the f/m installed. You do have guages installed, right?
I'm also wondering what boost levels you're hitting now with the f/m installed. You do have guages installed, right?
08-06-2003, 04:50 PM
#7
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Agreed. For the most part installing the FMIC as a purely cosmetic modification (don't hook up the piping) and leaving the TMIC in place would make for a better driver...
I'm surprised no one has done this yet.
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I'm surprised no one has done this yet.
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08-06-2003, 05:21 PM
#8
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Thanks for all the input. I thought that adding boost to the equation was not a good idea to begin with. If its fuel that I need than maybe I should pick up the STI injectors. Will just getting the injectors need tuning or is it a stand alone mod?? Ive had my plugs in for about a year now. Would going a step colder improve anything at all?? Just some other ideas that have been thrown my way. Im confused...... As far as the boost, its still running exacrlt the same as it did when I was running the TMIC.
08-06-2003, 05:50 PM
#10
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It may not be going lean due to excessive intercooling of the intake charge, but because of the incorrect way the airflow is being reported by the MAF.
You could tune for it by adding STi injectors and pulling fuel with a S-AFC, but that's just a ridiculous amount of work and expenditure to put in to the car just to have the FMIC run properly.
You might as well go with the whole turbo/injector/pump/engine management route at this point.
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You could tune for it by adding STi injectors and pulling fuel with a S-AFC, but that's just a ridiculous amount of work and expenditure to put in to the car just to have the FMIC run properly.
You might as well go with the whole turbo/injector/pump/engine management route at this point.
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08-06-2003, 05:52 PM
#11
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You'll need engine management to bring fueling back in line after installing STi injectors.
Going colder on the plugs won't help this particular problem. Replacing worn plugs, has a slim chance of helping (regardless of heat range).
Throwing a FMIC in front of a stock computer is NOT like throwing a boob at a baby. The computer doesn't instinctually know what to do with it.
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Going colder on the plugs won't help this particular problem. Replacing worn plugs, has a slim chance of helping (regardless of heat range).
Throwing a FMIC in front of a stock computer is NOT like throwing a boob at a baby. The computer doesn't instinctually know what to do with it.
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08-06-2003, 06:06 PM
#13
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You'll have to find a user tunable solution or something pre-configured for your setup (which is unlikely, not too many stock turbo/FMIC maps out there).
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08-06-2003, 06:08 PM
#14
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If you're JUST going for EM so that you can run STi injectors and make everything copacetic then a SAFC-II would do.
If you're going to be upgrading for more power (turbo, exhaust, etc.) and need to run pump gas you'll want something that has control over ignition advance at the very least, and boost control would also be nice (so something like the UTEC or Xede).
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If you're going to be upgrading for more power (turbo, exhaust, etc.) and need to run pump gas you'll want something that has control over ignition advance at the very least, and boost control would also be nice (so something like the UTEC or Xede).
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08-06-2003, 06:28 PM
#15
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Originally posted by IS2Scooby
Agreed. For the most part installing the FMIC as a purely cosmetic modification (don't hook up the piping) and leaving the TMIC in place would make for a better driver...
I'm surprised no one has done this yet.
Agreed. For the most part installing the FMIC as a purely cosmetic modification (don't hook up the piping) and leaving the TMIC in place would make for a better driver...
I'm surprised no one has done this yet.
