Over boosting?
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I was driving my car a little harder than usual today, when I noticed my wideband going nutts around 4.5k rpm's, it would show my a/f around 20.1. I did a few runs thinking maybe my wideband needed calibration and thats when i noticed my boost gauge pegging at 19psi. I have my reliaboost setup at 16psi and I have a shimmed wastegate. I have allready checked the line between the reliaboost and the wastegate and it looks ok. Your help would be greatly appreciated.
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Take the Reliaboost out, open it and inspect it.
Also, clear the "spike" hole with a pin or needle.
If the line from the mbc to the wastegate really is in tact, then Id lean towards the wastegate itself.
Also, clear the "spike" hole with a pin or needle.
If the line from the mbc to the wastegate really is in tact, then Id lean towards the wastegate itself.
Last edited by Cyrus951; 11-06-2004 at 10:47 PM.
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Thanks Cyrus, i got the reliaboost working but now iam having problems with the Lm-1 under hard acceleration after a few seconds from reading 11:7 to 12:3 it jumps to 20:9%02 which is the reading for regular air. I have checked the program on the LR digital maf (power perfect unit) and the map is ok, the only 2 things I still need to check are a bad WB oxygen sensor and maybe a Air leak, but all the symptoms lead to a bad oxygen sensor I think.