Air flow meter sensor.

Question edited for clarity and turned around, toss in some CAPS
Question moved to model category.

all here

https://www.google.com/search?q=2002+Lincoln+LS+3.0+V6.+Where+is+the+camshaft+position+sensor

There are a few reasons to limit RPM which can be a "Limp home" mode activating. But most show a code of some sort with a dash light. Another area is the automatic braking for the "Traction control" which in some models can also have a control to throttle the engine down to prevent wheel slippage.

Blocked catalytic converters can limit RPM by choking the exhaust flow. You have crankshaft and camshaft sensors which count the RPM and send signals to the brain and the fuelpump. Your crankshaft sensor regulates the fuel pressure and if it miscounts, the engine can be fuel starved.

Not all scanners are the same. One that reports fuel pressure while simultaneously reporting RPM would be something to know for fuel starvation.

You can kind of eliminate some possibilities by whether "Check engine" or "Traction control" warnings are on.

The EGR Valve could be an issue

Almost certain you will have 1 or 2 bad cop
ignition coils a year,so misfire ,yes

Could be several other problems

Need the correct spark plugs,they are special
to the LS,anything will fit,but not work right

O2 Sensors have to get changed at 100,000 miles

MAF Sensor Cleaned

V6 or V8

V8 is a lot easier to work on & less issues

Hi.it sound a lot like a ignition coil coils tend to do that if its got a crack it Swell when the temperature rises

This sounds like you have a pcv hose that has become an open vacuum leak. It is located under the upper intake, or given the year your air filter box may not be correctly sealed and possibly have a mass air flow sensor concern. Any Check engine light or codes to work with ? I f you have further questions just leave a comment on my page,

Sounds like your mass air flow meter is at faul.Replace it.Good luck.

its probably the compressor cutoff switch cutting your compressor off at the wrong time and causing your ac to blow hot. that switch is under your hood right on top of the engine easy to get to. I hope that helps you out!

not sure but it could be air flow meter ,or loose pipe to brake servo ,evan a inlet manifold loose

It is on the Driver side of engine in between the COP's (Coil on plugs) simply unplug the wire use a 19 or 3/4 deep well socket and unscrew it and put it new one... The whole process should only take 10-15 minutes.

2002 linclon ls 3.0 v6 pcv location