I just changed the coil in my Jag. When the car is in park I rev. the engine and above 4k rpm it starts to cut out. When I drive it,it never misses a beat, runs like a beast all the way up to red line.

I never rev. the gas up before in park prior to coil change so I don't know if it did this before coil change.

My question Is there a fuel cut off when in park like a governor?
Thanks

 

Could it be a bad injector?

They car runs perfect while driving, it pulls like a mule, I mean it feel like alot more than 300 hp....But if you stop put it in park and rev, it up it cuts out bad above 4,000 rpm's.

Just doesn't make sense.

 

Your car has a rev limiter so you don't blow up the engine.
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Ok as usual I freaked to soon.
I was digging around and found out that the jaguar v8's have a rev. limiter on them in park to 4500 rpm's

3.0 will rev. up to 7 k

I also read the 00-02 with the ford tranny has a rev. limiter on the v6's.
But removed it on the ZF trannies on the v6's

This is good to know.........lol

 

You are correct there is. Its like a redline for revving. So everything is good.

 

Thanks for the reply from what I was reading the rev. limiter is actually to keep you from damaging the transmission not the engine.

This is why they had a rev. limiter on the weaker ford 5 tranny on the v6's and removed it on the zf trannies.

 

Then why does your V-8 have a rev limiter when it has a ZF transmission?
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^ More HP and torque.

As I understand it when the transmission is in park the Jag V8's produce too much power for the Torque converter and tranny parts.

The V6 although is no weakling can only over power the Ford tranny.