PPI Evaluation help
Sounds like the PPI on my '92. Not a big deal to make most items right.
FMI.....
if compression numbers are high and even, what would a leak down test tell you ? Other than parts are wearing evenly and within spec ?
FMI.....
if compression numbers are high and even, what would a leak down test tell you ? Other than parts are wearing evenly and within spec ?
It's a 1990 Canadian spec car. My question is: did these have passenger side airbags? (I read somewhere that they did starting in 1990 but the PPI evaluator said he didn't get a signal).
Concerning the airbag light, the bulb may have been removed or have burnt out because the steering wheel has been replaced by a non airbag wheel.
Concerning the airbag light, the bulb may have been removed or have burnt out because the steering wheel has been replaced by a non airbag wheel.
Check this thread....https://rennlist.com/forums/964-foru...n-testing.html
Mauro,
I can't offer you much on the compression values since there are too many variables that affect the test results; this is why we ONLY do leakdown tests any longer.
That said, your numbers are very close to each other suggesting the engine is OK.
I can't offer you much on the compression values since there are too many variables that affect the test results; this is why we ONLY do leakdown tests any longer.
That said, your numbers are very close to each other suggesting the engine is OK.

If this is a Porsche specific shop I am surprised to see comments like tire tread good but tires from 2004. They should state they need replacing due to age irrespective of tread depth. Too many yeses and not enough specifics like rotor thickness and other cosmetic potential issues.
Otherwise looks like it is worth a closer look.
Otherwise looks like it is worth a closer look.


