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Replaced turbo, still having issues... 850 1994-1995

posted by  someone claiming to be Prospero on  Mon May 7 02:45 CST 2001 [RELATED]

Okay, I replaced my turbo yesterday since I was 99% sure it was gone. I had a boost problem last week in which my overboost limiter kicked in and then the next day I had no boost and bad idle. Since I could not hear the turbo spool I decided to replace it. Well, 4 hours and some grease under the nails later I have found the turbo to be ok and something else to be the problem. I installed the turbo, reset the codes and drove the car. More power than before but still running at about 1/2 of what it was before. I got the Check Engine light this AM while in traffic. I got out of A2: 414 and 231. (DTC 4-1-4 Boost Pressure Regulation) and (DTC 2-3-1 Long Term Fuel Trim, Part Load) The car is feeling the same thing I am for once! Big flat area in the mid-range and no boost at all. Well, now I am tired and worried about my baby. Any ideas as to what to try next. (Please, don't suggest replacing the turbo, I am still getting the coolant and oil out of my hair from last night when I replaced a good turbo with a new one.)

Thanks again

Prospero







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    Re: Replaced turbo, still having issues... 850 1994-1995

    posted by  someone claiming to be LM on  Mon May 7 03:58 CST 2001 [RELATED]

    I had a problem similar to this one before. In my case, the intake hose that connect to the throttle body got loose (pop out of the throttle body). When you look at it, everything was looking right, but under boost the hose was moving back and let the pressure vent out. Maybe, it is too obvious, but have you check if all the hose are firmly in place.







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      Re: Replaced turbo, still having issues... 850 1994-1995

      posted by  someone claiming to be Prospero on  Mon May 7 04:10 CST 2001 [RELATED]

      At this point, I am willing to try anything! I will check all of the hoses again, but this time I will do it by pulling them vs visual inspection. Good advice. Thanks much!

      Prospero







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        Re: Replaced turbo, still having issues... 850 1994-1995

        posted by  someone claiming to be M. Hirsh on  Sun May 13 03:15 CST 2001 [RELATED]

        Hi,

        I'm having a similar problem. Ready to pull the turbo, but a little reluctant hearing it takes 4 hours, and is messy. Any suggestions on the best way to pull it, and the best place to get a replacement?

        You might check the upper and lower hoses to the intercooler. They tend to get soft on the bottom side from oil accumulation, and can get a hole, or open up under pressure. My upper one did this. I think you might be able apply some of the leak detector (liquid soap) solution to the hoses, drive, and see if it has bubbled up anywhere. This stuff washes off easily with water.

        I think the long term trim points to a free (unmetered) air leak somewhere.

        Murray






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