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So I installed my turbo on the weekend and I haven't been able to get the friggin thing running well at all. It is still up on jacks as I am worried about driving it the way it is. I am running an MF2 for fuel, but these problems seem unrelated (pulled the fuse)

Basically it seems to be running way to rich. I have a shi77y a/f meter and it goes full rich as soon as it starts up. never seen it come down from there. The car is idleing very badly, it stutters and almost dies and then revs up. If I give it shots of gas it revs up, but if I hold it there it gradually dies down. I am getting codes for my secondary o2 sensor heater(been like that for a year) and misfires on all cylinders. When I pull the plugs they are BLACK! I am running 1 step colder NGK plugs (cant remeber the number off hand right now...7??)
I have the missing link and if I take the filter out it seems to idle better.

Also, I never see boost on my boost guage. I kinked the little plastic hose when I was installing it, think this could cause my problem? It seems to work fine in vacuum, it just never goes above 0.

I'm getting really frustrated. I'll post more details that I might be forgetting here later.


Thanks

 
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As far as the mf2 goes if the pressure sensor is "too sensative" then it will activate the mf2 when it sees any vac/pressure or while at idle and the car will die out. I know this because it happened to me when i first installed it on my car. As far as the boost gauge goes, if you still see vac, even with a kink, then i would think that seeing boost would not be a problem. IF your car is running way too rich to function properly you wont see that much boost at all. What type of kit do you have?

 
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this is the kit.
http://www.7thgencivic.com/forums/sh...d.php?t=176460

 
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So the MF2 only adds fuel by RPMs????? thats no good.

And what are you doing for your MAP sensor?? Missing Link, Black Box?? anything?? That will be amajor problem with idling. and a CEL At least it was for me, others say only under boost?? I dunno, when my MAP was seeing boost, or had a loose connection, it idled terribly.

 
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Yes the mf2 does add fuel by rpms wich is good if you ask me. I used it for a year with no problems.

 
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having the mf2 run off of rpm ranges to add fuel isn't bad..the e-manage does the same thing...

in your rpm range that controls idle turn it down


do you have larger injectors that haven't been accounted for?

as for not seeing boost...if you're only on jackstands you won't see any boost just revving it...your car has to be under a load to read any positive pressure...

 
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okay, I wasn't sure about that. I was worried that maybe my guage wasn't going to be accurate because the hose was kinked.
The MF2 only starts adding fuel at 2000 rpm, but it also has a pressure sensor, so it only fires the 2 extra 440cc injectors when it sees boost and is over 2000rpm.

 
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So more problems today. I went and started to diconnect things to figure out why it is running badly. I pulled the fuse for my MF2, disconnected my wastegate, removed missing link, pulled the intake piping so its n/a, and put my stock plugs back in.

Car should be running like stock right now. Started up fine, but as soon as it warmed up it started to idle poorly again, stumbling and almost dying. It also wont rev up at all, if I give it gas it just sort of bogs down. Seeing white smoke out the exhaust as well. Did a compression test and all is good. Pulled my dipstick while the car was running to check my oil for coolant, and the pressure sprayed oil out the dipstick tube onto my hood??

I am thinking I am going to return all my vaccum/pcv hoses to stock tomorrow. This picture is my current setup. Any thoughts??

 
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Instead of using the vacum like you have it, I used the golden eagle vacum manifold and taped off of the brake booster line.

 
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So when you disconnected the mf2 the car still bogged down right? Make sure you unplug the mf2 totaly.

 
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So wether you are boosting 2lbs or 15 lbs at say 5000rpms, you will get the same amount of fuel??? This is why it would be no good, not terrible, but not too good. Adding by lbs of boost is much much better, to avoid running hella lean/rich at certain boost levels. Am I correct, or does this also add fuel per lb of boost? if so, forget what I said. If Im right, please explain how it works to not go lean/rich. Thanks!

Peace

 
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You are right. But when do you ever see 2psi at 5000 rpm? More than likely if your seeing 5000 rpm you are WOT, if so the pressure switch will kick in and the injectors "fire". But if your not at WOT at 5000rpm depending on how things are set up the injectors wont activate. Its really kind of hard to explain. I could show you better than explaining. I just know the set up works

 
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Its doesnt adjust fuel by psi, so yes you can only tune it for a "cetrain" psi. But most of the time i boosted it was WOT boost, i never boosted only 2psi or just 3psi at a time. It was for the most part always at WOT. So i never really had a problem with it. The needle would hit 6 Psi, and i tuned for 6psi at WOT. Most of the time when people do boost its at WOT.

 
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gotcha. I boost at half throttle at times, it all depends. Sometimes I step on the gas alittle to avoid crappy drivers, and it will boost 1or 2 lbs at 5000 rpms. At least youd be running rich though, so thats not too bad. thanks for explaining, I thought thats how it works.

Peace

 
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Yah its kind of primative. But i never ran lean with it. Its great for boost on a budget. BTW I have one for sale if anyone wants to buy one.

 
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Aren't those two extra injectors a little too big

 
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IT LIVES!!
I got it running today!
It turns out it was my A/F guage causing bad readings on my o2 sensor. Made the car idle all messed up. Had a good night of boosting, need to tune it better though. Its running a little to rich, so I don't think I am making as much power as I could. Probably going to schedule some dyno time for next weekend. Thanks for all your imput guys.

Sodjazero: I might have a friend interested in your MF2. I will talk with him some more and if he is interested I'll get back to you. How much $$??

 
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nah, the fuel is adjustable by the MF2. Very cool/simple little box. It does a 3d fuel map based on your boost/rpm. It also transitions between rpm levels. Really elegant solution actually. I'm pretty happy about it.

I'm only boosting 4psi right now, going to get a boost controller and some dyno tuning maybe next weekend.

car pulls pretty good right now though. Not the smoothest power curve due to my quick tuning job.