Why do things all ways crap out at the worst times

[eflores]

you boys have my number....dont wanna divulge my source

 

[hupo224]

23 days until I leave to CO and my CPS started crapping out. So 20 dollars later my intermittent CPS related issues disappeared

 

[Boostwerks.com]

Is the high altitude sensor only a renix issue or are they still used on the HO motors as well? I'm curious what my 99 has.

 

[O-Gauge Steamer]

There is only one for your engine (mine too, come to that...) as the PCM sets the fuel and ignition starting points via the MAP sensor reading at ignition on, zero rpm. It takes a snapshot of the MAP to determine the altitude. My F/IC works the same way. From there, it goes dynamic.

BTW, CPS from rockauto:

1987 JEEP CHEROKEE 4.0L 242cid L6 OHV : Ignition : Crankshaft Position Sensor WikiPriceAlternateAIRTEX / WELLS Part # 5S1801

{Click Info Link for Alternate/OEM Part Numbers7700722143, 7700739789, 7701349559, SU3015, T0739789, T1349559}
exc. High Altitude

$26.99Add Part

AIRTEX / WELLS Part # 5S1800

{#53005421, 8953003659, SU3014}
(High Altitude)

* Non-stock item--shipping delayed up to 2 business days$40.79Add Part