RENIX CPS ALERT

[cruiser54]

RENIX CPS ALERT

 

High altitude CPS for Renix has been discontinued by Chrysler.

 

The part number is 53005421 and using this CPS advances your ignition timing about five degrees .

 

There are only about 120 of these available in the US as of November 23, 2011.

 

Dealer price is around $50.

[Harley]

I have the high alt package on mine too and I found my CPS at a carquest I believe it was, here in town for $35

[cruiser54]

I understand that some aftermarket companies still offer them. The problem has been the unknown quality of the off-shore sensors, their high failure rate, and how often they're bad right out of the box because they don't generate a strong enough signal..

[Eagle]

I called my dealer and ordered this morning (November 28). As of late morning today there were 100 in the system -- that was BEFORE my order.

[cruiser54]

There were 126 of them on the day before thanksgiving.

[HOrnbrod]

That's probably more dealer availability than most of the other Renix-specific sensors. Just a matter of time until the junkyard is the only source, if they're not all crushed sooner............

[Eagle]

There were 126 of them on the day before thanksgiving.

As you posted above.

 

Thanks to your heads up, I decided to get mine while I could. If there were 126 on the 23rd and 100 on the 28th, with a holiday in the interim, that tells us they won't last long. If you want/need one, act now.

[big66440]

So I'm assuming this piece will give a little bit better performance? is it compatible with the non high altitude system?

[cruiser54]

Yes, and yes. Hopefully there are some left by now.

[Eagle]

Actually, it won't give any better performance. It can't. The Renix system has a knock sensor and it's set to run at the maximum advance that doesn't produce knock. As soon as the sensor detects knock, it retards the timing to stop it.

 

Since knock occurs under load, and since "performance" typically produces load, the knock sensor is going to be retarding the timing more with the high altitude CPS than with the standard one. Where it should produce benefits is in gas mileage if you're the type who drives with a light foot on open roads without too many mountains.

[cruiser54]

Eagle, have you ever used one yourself?

[Eagle]

Eagle, have you ever used one yourself?

Yes, I've been running high-altitude CPSs in my Renix XJ and MJ for several years. I live at the lofty altitude of 440 feet above sea level.

[cruiser54]

It makes a noticeable difference at 5,300 foot elevation FWIW.

[Eagle]

It makes a noticeable difference at 5,300 foot elevation FWIW.

That's why it's a "high altitude" CPS.

[cruiser54]

Yep.