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Something's wrong.

I'm not sure why my car doesn't want to make boost. I took out the Profec B and SAFC to install the UTEC. I was running 21psi with the profec and the car was making decent power. I installed my UTEC and now it's slow as hell. It is not the UTEC's fault though. For some reason, I am only able to make 13psi. I don't get it.

Here is a little background. I previously used the Profec for a boost guage. It worked pretty well since it has some nice peak functions. I went and bought an autometer boost guage to keep in the glove box for tuning since I want to have no guages visible in the car at all. I want it to look 100% stock. I also wanted to try to avoid the ABC for a cleaner install. I figured that 19-20psi to redline is plenty with that other additional features on the UTEC.

I removed the Profec and SAFC. The Profec was tapped for the guage at the fuel pressure line. I'd rather tap somewhere else, but it was working fine for the last 6 months. I tapped the autometer boost guage in the same spot and it only showed 12psi. No wonder the car is so slow. I went home and added the ABC out of curiousity since the map shows 100% BCS duty cycle at 100% TPS. I installed the ABC and I ended up cranking it wide open. Eight full turns and i am still only running 13psi. I don't get it. I have the cacuum lines exactly how they are diagramed on the underside of the hood and in the UTEC manual. It makes no sense to me. It was fine with the Profec, so I know nothing is mechanically wrong with the turbo. I haven't taken anything apart, so there should be no additional boost leaks now. I just don't get it.

Here is a log of a modified map. Look at my MAF signal. I see other people are seeing around 1700hz or more. That's what I was running before. Now I am lucky to see 1400hz.

Code:

    ,     ,     ,   ,Load,Knock,      ,      , Mod,  Mod,      ,  Mod

 RPM,  MAP,  MAF,TPS,Site,Count, Ign#1, Inj#1, Ign,  Fuel,Boost,  MAF

    ,  psia,  Hz, % ,    ,     ,  deg , duty , deg,   %  ,(OL) ,   Hz

 3267,+27.4,  62,  1, 00,   00,  +22.7,   5.0,ECU. , +0.0,ECU.  ,  61

 3264,+27.4,  62,  1, 00,   00,  +22.5,   5.0,ECU. , +0.0,ECU.  ,  62

 3236,+27.4,  59,  1, 00,   00,  +22.5,   5.0,ECU. , +0.0,ECU.  ,  61

 3242,+27.4,  61,  1, 00,   00,  +22.6,   5.0,ECU. , +0.0,ECU.  ,  58

 3287,+27.4, 336, 28, 10,   00,  +31.6,  10.0,ECU. , +0.0,ECU.  , 324

 3770,+27.4,  46,  1, 00,   00,  +34.1,   4.0,ECU. , +0.0,ECU.  ,  45

 3557,+27.2, 285, 17, 00,   00,  +38.8,   6.0,ECU. , +0.0,ECU.  , 363

 3944,+27.2,  80,  1, 00,   00,  +28.7,   7.0,ECU. , +0.0,ECU.  ,  35

 3691,+27.2, 358, 18, 00,   00,  +28.0,  10.0,ECU. , +0.0,ECU.  , 435

 4246,+27.2,  48,  1, 00,   00,  +38.0,  10.0,ECU. , +0.0,ECU.  ,  81

 4585,+27.0, 389, 27, 10,   00,  +29.9,  14.0,ECU. , +0.0,ECU.  , 377

 4403,+27.0, 437, 30, 10,   00,  +28.1,  18.0,ECU. , +0.0,ECU.  , 452

 4559,+27.2, 549, 33, 10,   00,  +26.1,  23.0,ECU. , +0.0,ECU.  , 576

 4694,+27.0, 874, 50, 10,   00,  +15.7,  35.0,ECU. , +0.0,ECU.  , 827

 4866,+27.2,1106, 87, 10,   00,   +8.8,  52.0,ECU. , +0.0,100.00, 988

 5058,+27.2,1068,100, 30,   00,   +8.8,  54.0,ECU. , -1.6,100.00,1162

 5307,+27.4,1101,100, 40,   00,  +12.3,  56.0,ECU. , -3.9,100.00,1024

 5537,+27.2,1184,100, 50,   00,  +13.4,  55.0,ECU. , -7.1,100.00,1136

 5777,+27.2,1222,100, 50,   00,  +15.4,  58.0,ECU. , -7.5,100.00,1041

 5973,+27.2,1170,100, 50,   00,  +16.2,  61.0,ECU. , -5.5,100.00,1146

 6195,+27.2,1340,100, 70,   00,  +18.2,  61.0,ECU. ,-11.9,100.00,1152

 6410,+27.2,1201,100, 60,   00,  +19.5,  63.0,ECU. , -8.5,100.00,1157

 6640,+27.2,1253,100, 60,   00,  +22.4,  64.0,ECU. , -9.1,100.00,1219

 6816,+27.2,1385,100, 60,   00,  +23.4,  64.0,ECU. , -9.5,100.00,1237

 7002,+27.2,1272,100, 60,   00,  +25.3,  65.0,ECU. , -9.5,100.00,1168

 7199,+27.2,1355,100, 70,   00,  +27.7,  63.0,ECU. ,-13.5,100.00,1201

 6600,+27.2, 156,  2, 00,   00,  +38.6,   7.0,ECU. , +0.0,ECU.  , 393

 6242,+27.2, 851, 63, 30,   00,  +31.4,  34.0,ECU. , -1.0, 83.00, 992

 5120,+27.2,1256,100, 30,   00,  +11.1,  55.0,ECU. , -1.2,100.00,1141

 5402,+27.2,1187,100, 20,   00,   +9.9,  63.0,ECU. , -0.5,100.00,1207

 5583,+27.2,1089,100, 40,   00,  +12.3,  60.0,ECU. , -4.9,100.00,1116

 5668,+27.2,1243,100, 50,   00,  +14.2,  57.0,ECU. , -7.7,100.00,1213

 5797,+27.0,1262,100, 60,   00,  +15.2,  59.0,ECU. , -9.7,100.00,1054

 5889,+27.0,1298,100, 50,   00,  +15.6,  61.0,ECU. , -6.5,100.00,1173

 6016,+27.2,1237,100, 60,   00,  +16.2,  62.0,ECU. , -8.5,100.00,1250

 6127,+27.2,1305,100, 60,   00,  +17.3,  62.0,ECU. , -8.5,100.00,1054

 6242,+27.4,1416,100, 60,   00,  +18.3,  63.0,ECU. , -8.5,100.00,1162

 6349,+27.4,1308,100, 80,   00,  +20.4,  60.0,ECU. ,-12.0,100.00,1072

 6459,+27.2,1326,100, 70,   00,  +21.5,  61.0,ECU. ,-12.4,100.00,1136

 6561,+27.2,1237,100, 60,   00,  +21.5,  63.0,ECU. , -8.6,100.00,1201

 6680,+27.2,1204,100, 70,   00,  +23.3,  60.0,ECU. ,-13.1,100.00,1184

 6775,+27.2,1373,100, 70,   00,  +24.6,  61.0,ECU. ,-13.5,100.00,1106

 6872,+27.2,1312,100, 70,   00,  +24.5,  61.0,ECU. ,-13.5,100.00,1190

 6973,+27.2,1269,100, 80,   00,  +25.4,  62.0,ECU. ,-13.4,100.00,1269

 7047,+27.2,1298,100, 70,   00,  +25.9,  63.0,ECU. ,-13.5,100.00,1116

 7168,+27.0,1416,100, 60,   00,  +25.9,  65.0,ECU. , -9.5,100.00,1275

 7246,+27.2,1432,100, 70,   00,  +27.0,  63.0,ECU. ,-13.5,100.00,1262

 7342,+27.2,1362,100, 70,   00,  +27.2,  63.0,ECU. ,-13.5,100.00,1157

 7423,+27.2,1432,100, 70,   00,  +27.6,  63.0,ECU. ,-13.5,100.00,1243

 7407,+27.2,  92, 27, 60,   00,  +36.9,   7.0,ECU. , -9.5,ECU.  ,  64

 6830,+27.2, 174,  1, 00,   00,  +38.6,  24.0,ECU. , +0.0,ECU.  , 169

 6138,+27.2,1077,100, 20,   00,  +26.8,  43.0,ECU. , -0.5,100.00,1020

 5402,+27.2,1275,100, 10,   00,  +10.1,  63.0,ECU. , +0.0,100.00,1336

 5611,+27.2,1173,100, 20,   00,  +12.2,  63.0,ECU. , -0.5,100.00,1225

 5640,+27.2,1179,100, 40,   00,  +13.3,  60.0,ECU. , -5.1,100.00,1033

 5717,+27.2,1269,100, 50,   00,  +14.2,  58.0,ECU. , -7.7,100.00,1121

 5747,+27.2,1216,100, 50,   00,  +13.5,  60.0,ECU. , -7.8,100.00, 988

 5797,+27.2,1149,100, 60,   00,  +15.4,  58.0,ECU. , -9.7,100.00,1302

 5858,+27.2,1259,100, 60,   00,  +15.4,  59.0,ECU. , -9.6,100.00,1213

 5910,+27.2,1262,100, 60,   00,  +15.5,  60.0,ECU. , -9.1,100.00,1179

 5973,+27.2,1219,100, 60,   00,  +16.3,  61.0,ECU. , -8.8,100.00,1179

 6038,+27.0,1259,100, 60,   00,  +16.3,  61.0,ECU. , -8.5,100.00,1116

 6116,+27.0,1288,100, 60,   00,  +17.4,  63.0,ECU. , -8.5,100.00,1201

 6127,+27.0,1190,100, 60,   00,  +17.3,  63.0,ECU. , -8.5,100.00,1269

 6172,+27.0,1219,100, 60,   00,  +18.4,  64.0,ECU. , -8.5,100.00,1231

 6253,+27.2,1259,100, 60,   00,  +18.4,  64.0,ECU. , -8.5,100.00,1152

 6277,+27.2,1176,100, 60,   00,  +18.4,  63.0,ECU. , -8.5,100.00,1269

 6325,+27.2,1210,100, 60,   00,  +19.5,  64.0,ECU. , -8.5,100.00,1141

 6410,+27.2,1373,100, 60,   00,  +19.4,  65.0,ECU. , -8.5,100.00,1162

 6435,+27.0,1216,100, 60,   00,  +20.5,  64.0,ECU. , -8.5,100.00,1146

 6510,+27.2,1207,100, 60,   00,  +21.7,  64.0,ECU. , -9.4,100.00,1152

 6535,+27.2,1432,100, 70,   00,  +22.6,  61.0,ECU. ,-12.7,100.00,1162

 6613,+27.2,1282,100, 60,   00,  +22.1,  63.0,ECU. , -8.9,100.00,1225

 6666,+27.2,1381,100, 60,   00,  +22.3,  65.0,ECU. , -9.1,100.00,1184

 6680,+27.4,1381,100, 60,   00,  +22.3,  66.0,ECU. , -9.2,100.00,1141

 6747,+27.2,1333,100, 60,   00,  +23.2,  65.0,ECU. , -9.5,100.00,1250

 6788,+27.2,1291,100, 70,   00,  +24.5,  62.0,ECU. ,-13.5,100.00,1256

 6816,+27.2,1474,100, 70,   00,  +23.8,  62.0,ECU. ,-13.5,100.00,1207

Any suggestions?

did you happen to remove the factory vaccum lines to install your profec boost controller?

Jermaine@turboxs.com
www.turboxs.com

Quote:

Originally posted by Imprezd
did you happen to remove the factory vaccum lines to install your profec boost controller?

Jermaine@turboxs.com
www.turboxs.com

That was my guess. There is a restrictor that has to be in the right place or the boost control system isn't going to work well.

In the EVO there are two restrictor pills. The line off the compressor cover MUST have one of them and the second one is in the line running to the factory boost control solenoid. The second one can be removed to allow for higher boost pressure, but the removal of the first one will result in boost pressure being limited to right around your waste-gate spring pressure.

-Nathan
www.turboxs.com

I had them removed, but they are back to a stock configuration now.

Quote:

Originally posted by instigator
I had them removed, but they are back to a stock configuration now.

Take a look and double check that you got the restrictor in the line coming from the compressor cover.

If it is there, then go into your UTEC boost map and at the low throttle positions type in a duty cycle of 75% from 500rpm to 2000rpms save the map and exit to the UTEC home screen.

Then pop the hood and stick your ear by the factory boost control solenoid. If it is not clicking, it's dead and that will be the source of your problem.

-Nathan
www.turboxs.com

Oops... double post.

That makes sense. I *think* I am using the factory lines except for the 4mm line you supplied. The restrictor is between the compressor and the "T"?

Quote:

Originally posted by nmyeti

That was my guess. There is a restrictor that has to be in the right place or the boost control system isn't going to work well.

In the EVO there are two restrictor pills. The line off the compressor cover MUST have one of them and the second one is in the line running to the factory boost control solenoid. The second one can be removed to allow for higher boost pressure, but the removal of the first one will result in boost pressure being limited to right around your waste-gate spring pressure.

-Nathan
www.turboxs.com

Quote:

Originally posted by instigator
The restrictor is between the compressor and the "T"?

Correct.

I am almost sure that there is not one there. That must be the issue. Thanks guys!! I'll be sure to let you know once I take a look tonight.

It looks like the restrictor was the issue. Thanks again guys! I couldn't find the restrictor from the shorter compressor hose, so I used the one fro the longer hose. I am not able to make 19pis without the ABC, but it can at least be turned up to get back there. I am guessing that the original restrictor might be smaller than the one I am using. I'll have to go order the vacuum hose kit from Mitsu to see if that makes it any better.

I am a little slow on the Utec lingo, but can or cant we use a MBC with the Utec. I am currently using dynoflash as my method of tuning, but my upgrade path in the next 2 months is becoming rapid and I def dont want to add a afr/afc. I am pretty knowledgeable with these but i am now looking to upgrade to the Utec. From reading around I have heard nothing but good things from this unit. I am getting pretty excited with this unit I am just afraid that I am going to need someone to help me with the system at first to become comfortable with the Utec.

I don't see why you couldn't use a EBC/MBC. I would just set the boost map on the UTEC to 0 all across the load ranges.

I was alittle frustrated on Saturday morning because it wasn't running as well as before, but I had only had it in the car for a few hours when I took it to autocross. After some time with it, I am already getting it running pretty well. After some dyno time, it should be set up pretty well with a few maps for different situations.

You can use an EBC/MBC with the UTEC. You don't have to do anything different with the UTEC's boost map.

-Nathan
www.turboxs.com

Quote:

Originally posted by nmyeti
You can use an EBC/MBC with the UTEC. You don't have to do anything different with the UTEC's boost map.

-Nathan
www.turboxs.com

but do you suggest using one? I am really leaning toward the UTEC now. I picked up a laptop today to use for it, and some of my mods should be coming soon. I want to install the UTEC after the cams, injectors, and new FMIC

i am really getting excited now

You can easily control boost with the UTEC, so another MBC/EBC is unecessary, it really depends on what you want to do with it.