I have an 03 S-Type 4.2l......I recently replaced my intake manifold gasket due to a recurring lean engine code.

After re-assembly (which went very smoothly), I am now getting 2 new codes on every cold start.

P0193 - Fuel Rail Pressure Sensor Circuit High Input
P1108 - MAP Sensor Circuit High Input

These 2 faults seem unrelated to me, but I have never seen them before and they are now happening together on every start.

Any thoughts if they share the same wiring harness possibly? Any other ideas out there??

Thanks in advance.

 

Are you sure that you plugged both in properly?

 

Unfortunately yes....in fact considering the location of the MAP sensor, I was certain to hear the clip snap into place. I really didn't want to have to pull the intake again.

 

I think I have found at least one issue.....there is a substantial crack in the fuel rail pressure sensor at the base of the nipple where the vac line plugs into. Substantial enough, that when I jiggled it a bit, it completely broke off.....that can't be good.

Ordered a new part from Rock Auto, hopefully that solves that issue.

What's the possibility that my p1108 code could also be a result of this?