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BOOST ISSUE/ BROKEN CATALYTIC CONVERTOR.
Posted by 91 900 aero convertible (more from 91 900 aero convertible) on Sun, 8 Apr 2007 16:40:48
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OK. so after three days checking for boost issue. Day one i had 14 psi. day, two 12 psi, day three 7 psi. As i mentioned before i checked all turbo/ intercooler pipes, bpv, apc parts etc all ok. I did an isolation test with the wastegate hose off and no diffrence at all. here is my question. for the last few weeks, i noticed my cat was becoming rattly ( broken piece inside) however the car boosted 20psi no problem and spooled up fast.
now that i am getting this boost issue, I am noticing that the tail pipe has some catlitic grey dust ( ceramic or whatever) so the cat is falling apart internally. could this be cloging the exhaust flow and causing the car not to boost more than 7 psi. also the spool up is very slow now.
Any had this issue before and the cat was the problem.
posted by 151.204.14...
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