Quote:
Originally Posted by R.Diesel
Id start with the easy stuff first. 138 sends pressure to 103. The more pressure the more fuel and consequently more boost. Check that 138 isn't clogged (doesn't hold even slight vacuum) and that 103 doesn't leak that pressure (does hold at least partial vacuum)
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This diagram appears to be for the vacuum-operated waste gate? I think it is wrong for the OP's car. The OP has already done the first check, and now performed a different test and determined that boost is way too low. Your second check may be worth a try after we get the boost fixed.
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Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC
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