# CAR dies after driving for about an hour!!help!! **URL:** \ **Category:** Canada Nissan Automotive\ **Created:** [February 19, 2008, 6:56am UTC](https://forums.speedlife.net/t/car-dies-after-driving-for-about-an-hour-help/135326 "2008-02-19T06:56:08Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![pcproa](https://avatars.discourse-cdn.com/v4/letter/p/c5a1d2/32.png) [@pcproa](https://forums.speedlife.net/u/pcproa)\ **Post date:** [February 19, 2008, 7:40am UTC](https://forums.speedlife.net/t/car-dies-after-driving-for-about-an-hour-help/135326/5 "2008-02-19T07:40:42Z")
> [@4g63 swapped hatch](https://forums.speedlife.net/t/4g63-swapped-hatch/2949/15): > > i havent checked codes yet…but ptu is that metal thing with fins…nissan called it ignition module…its black has 2 connectors to it on each side. I just found out how to check for codes…so when i go home i will try it…i was also told i should check my fuel pressure…do u know what the pressure is sapposed to be? Yes that is the PTU (Power Transistor Unit). If you are referring to fins then I assume you still have the old style PTU. The old style PTU responds horribly to heat and is usually located underneath the centre nose panel as opposed to the timing belt cover on the front of the engine. The fuel pressure should be 43.4psi with the vacuum hose disconnected from the FPR, which is equivalent to WOT. The other RPMs are variable. --- _[View the full topic](https://forums.speedlife.net/t/car-dies-after-driving-for-about-an-hour-help/135326)._