Hey guys, I got a quick question(s). I just finished my custom turbo kit on my 4th gen h22 prelude. After fitting the downpipe and everything, I started her up. Granted I only had a basic uberdata basemap programmed in, I tuned the fuel up to 110%, my wideband02 said it was lean, so I tuned it up to 130%, still lean, then 180%, it bounced from lean to rich. Could this be my injectors? I put in dsm 450's and a walbro 255lph fuel pump. I am wondering if I have a bad injector or something.
Also, after running it for a minute or two, the compressor housing started smoking. I primed the oil feed lines too so I am wondering if this is just burning impurities off of the housing. I tried searching but couldn't find any answers to my problem. I know I need more investigating, but I was just wondering if anybody had experienced either of these two problems. Sorry for the ramble, thanks in advance!

 

Are you tuning off a wideband or a narrowband gauge? IF narrowband, that is half your problem. Also it could be impurities burning off, like oil from hands and junk like that. you will see more of that on your manifold, that is where you should have seen it first.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 &raquo;</TD></TR><TR><TD CLASS="quote">Are you tuning off a wideband or a narrowband gauge? IF narrowband, that is half your problem. Also it could be impurities burning off, like oil from hands and junk like that. you will see more of that on your manifold, that is where you should have seen it first.</TD></TR></TABLE>
I am tuning off a wideband, and yes, it did smoke from the manifold first. What is a good number to look for, I have heard for boosted cars around 13.5-14. It is jumping from idle (which is extremely high at 2000rpm) at like 11 to about 14-15 at around 4k rpm's. Actually that reminds me, why the hell is my idle so high? is that normal like another part of the break in period? THanks

 

that is normal to have a high idle with uberdata, there are a few things you can do to fix it. I think they are in the newer versions. but check out the website for that stuff. Are you sure you are taking out of the right portion of the map?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 &raquo;</TD></TR><TR><TD CLASS="quote">that is normal to have a high idle with uberdata, there are a few things you can do to fix it. I think they are in the newer versions. but check out the website for that stuff. Are you sure you are taking out of the right portion of the map?</TD></TR></TABLE>

idk about normal, ive had a slight fluctuation with any uber ecu ive had, but never a really high idle

does your car have a resistor box stock, if not id be willing to bet that its wired up wrong, because thats what it sounds like to me

brian

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coptzer &raquo;</TD></TR><TR><TD CLASS="quote">

idk about normal, ive had a slight fluctuation with any uber ecu ive had, but never a really high idle

does your car have a resistor box stock, if not id be willing to bet that its wired up wrong, because thats what it sounds like to me

brian </TD></TR></TABLE>

It all depends on the car. My car doesn't do it. But a few cars that I have tuned like to idle fairly high once you start them up. Then it fluctuates a little and then idles perfect after a little warm. Just need some adjustment to the enrichment in some cases.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 &raquo;</TD></TR><TR><TD CLASS="quote">

It all depends on the car. My car doesn't do it. But a few cars that I have tuned like to idle fairly high once you start them up. Then it fluctuates a little and then idles perfect after a little warm. Just need some adjustment to the enrichment in some cases.</TD></TR></TABLE>
Yea, thats what I was thinking/hoping. I am going to be working on it all day tommorow and I will let you guys know what happens. Thanks for all the help!

 

Okay so I worked on the car all day, didn't get done everything I wanted to but oh well. I started it up to take it out of the garage and it wouldn't start! The wierd thing is is that it had started about 1 hour before! I can't tell if its a problem with ignition timing from tuning, with uberdata I tuned it .9 ign retard which is what was recommended for a setup of lower psi. I don't know if anyone can enlighten me about what the hell's going on but if you could I would greatly appreciate it! I am gonna work on it more tommorow so any suggestions of things for me to look for would be great! Thanks for everyone's help in advance!

 

check for vac leak. that idle is way higher than any uberdata car i have tuned. also, are you tuning the boost maps too 14~15 AFR? i sure hope not. you should be looking for 14~15 in vac and 12 in boost. are you running the injector box? or just some inline resistors from radio shack work just as good. you need something though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ndogg &raquo;</TD></TR><TR><TD CLASS="quote">check for vac leak. that idle is way higher than any uberdata car i have tuned. also, are you tuning the boost maps too 14~15 AFR? i sure hope not. you should be looking for 14~15 in vac and 12 in boost. are you running the injector box? or just some inline resistors from radio shack work just as good. you need something though.</TD></TR></TABLE>
I will check for vac. leaks tommorow. I am new to uberdata so I don't understand what you mean as far as tuning the boost maps to 14-15. I set my boost fuel to 120%, .9 ign. retard, and 1.75 map sensor. I also set all my idles and stuff too. Where do you think my vac you be leaking? My BOV? My boost gauge reads 10 vac. at idle (which now is 2k-3k) If you need any more information from me please let me know. Thanks very much.

 

you want 12:1 AFR in boost. the boost portion of the map is the right side. how much boost are you running? you may have the injectors maxed out and thats why you were seeing the twichy AFR. what is your AFR at idle? in boost? check for vac leaks on the manifold and any vac hoses.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ndogg &raquo;</TD></TR><TR><TD CLASS="quote">you want 12:1 AFR in boost. the boost portion of the map is the right side. how much boost are you running? you may have the injectors maxed out and thats why you were seeing the twichy AFR. what is your AFR at idle? in boost? check for vac leaks on the manifold and any vac hoses.</TD></TR></TABLE>
I am seeing numbers on my wideband around 13 or 14 at idle, which I know is rich, and around boost(which I haven't really gotten too due to lack of driveabillity) its around 11 or 12 on my wideband. I don't know if thats completely accurate because on uberdata I have launch cut a little before my spool time, so I think I will diable that, burn a new chip, and see if the car will even start. Oh yea, and I am running 8.7 psi. Thanks for the help!

 

Well, I figured out why the car won't start. I took out the plugs and plug from cylinder 2 was dripping with oil. I really hope this doesn't mean I blew a ringland. I am gonna go search and find out, any suggestions are welcome. Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by maxvtec7500 &raquo;</TD></TR><TR><TD CLASS="quote">Well, I figured out why the car won't start. I took out the plugs and plug from cylinder 2 was dripping with oil. I really hope this doesn't mean I blew a ringland. I am gonna go search and find out, any suggestions are welcome. Thanks</TD></TR></TABLE>

check the spark plug hole seals, usually the culprit, esp seeings how you said you havent boosted it yet

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coptzer &raquo;</TD></TR><TR><TD CLASS="quote">

check the spark plug hole seals, usually the culprit, esp seeings how you said you havent boosted it yet</TD></TR></TABLE>
Yup, I took off the valve cover and replaced the cover gasket and tube seals. I have yet to start it up but I will let you all know tommrow!! Thanks in advance again!

 

Well, figured out why it wasn't starting. fuel pump isn't priming! Does anyone know which relay/fuse to replace? I cannot find any definite looking relays from the fuse box cover, maybe I'm missing it! Any help would be appreciated! THanks guys!

 

Haha, wow I guess this thread is dead. Well for those who are interested, I found out my car wouldn't start because the fuel pump wasn't priming due to my main relay. I am gonna replace that tommorow and start her up and find my damn vacuum leak! I let ya'll know!