Had a PPI done on a 355 yesterday. Overall, everything looked great per the technician. Here are the #s on the engine: Cylinders 1-7; 10%, 8th cylinder 5%. 155, 160, 160, 160, 155, 150, 160, 170 Only one weird thing happened. After driving, the c/e light came on. They pulled the code. It was "camshaft position sensor". They reset it and it went away and didn't come back. The owner said it would intermittently do that. They also recommended replacing all the plugs (it wasn't done at the last 30K) and indicated the brakes were louder than normal (saw new pads). Any cause for concern on the camshaft sensor error? Hard/easy fix? Steve
The plugs weren't swapped out during the major??? That's crazy. Probably the easiest and cheapest thing to be done along with the plug wires. The Cams should be, (should have been), timed as well. Someone had a recent post about that not too long ago. It made a huge difference in my car. Any frequent and reoccurring error code should be approached with caution. The mechaincs and more experienced thatn I on this board should be able to answer the sensor question. -Billy
Fernando with Competizione just told me the compression numbers were too low and with 31K on the engine, he recommended I keep looking. Had another guy say it's not the height of the numbers but the consistency or difference between the cylinders. What do you guys think?
IIRC, the specs are 150 psi minimum and less than 10% between cylinders. The spread on this car is over 13% and some of the cylinders are at 150 psi - bordering on busting that end of the spec. I'd keep looking (or budget for a rebuild).
It is not in the best of shape..... not changing the spark plugs at a 30k shows they skimped.... now its a matter of how much they skimped .
Camshaft sensors are about as easy as it gets. Compression numbers are subject to a lot of variables depending on the methodology. It may in fact be fine. It would have been convenient to do the plugs when the compression test was done. Not a big deal though.
