2003 buick Park avenue ultra 3.8 supercharged

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Charles Lacy

2003 buick Park avenue ultra 3.8 supercharged

Unread post by Charles Lacy » Mon Apr 26, 2021 1:16 am

Car backfires, no run.
New timing kit, crank and cam sensors,oil pump,spark plugs and wires,coils,lifters, pushrods,oil level sensor,oil pan gasket,heads rebuilt, supercharger gone threw,all injectors cleaned,fuel pump new.
Fuel builds up, and motor backfires, will not run, code is timing, but reset it 6 times, same outcome.
Please help.

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carriedi
Posts: 2459
Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: 2003 buick Park avenue ultra 3.8 supercharged

Unread post by carriedi » Wed Apr 28, 2021 6:17 am

why did you do a timing kit?

what is the stored code by the numbers? (Pxxxx)

Have you done a compression check ?

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