4.6 Stroker Build
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vashxj
- I made it to triple digits!
- Posts: 193
- Joined: August 10th, 2012, 8:46 pm
- Stroker Displacement: 4.6
- Vehicle Year: 1999
- Vehicle Make: jeep
- Vehicle Model: cherokee
- Location: belvidere, il
Re: 4.6 Stroker Build
the downstream doesn't matter it just tells the pcm if the cat is bad, could you possibly have a bad upstream o2 sensor?
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redrider2911
- Where's the "any" key?
- Posts: 25
- Joined: November 12th, 2009, 5:47 pm
- Vehicle Year: 1994
- Vehicle Make: Jeep
- Vehicle Model: Cherokee
Re: 4.6 Stroker Build
Thought I would update this. The upstream sensor I just got a few months ago was bad. Replaced it under warranty and now it runs perfect.
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redrider2911
- Where's the "any" key?
- Posts: 25
- Joined: November 12th, 2009, 5:47 pm
- Vehicle Year: 1994
- Vehicle Make: Jeep
- Vehicle Model: Cherokee
Re: 4.6 Stroker Build
Today I went through and installed new plugs, wires, and a coil. While I had it apart I went ahead and did a compression test. I was really surprised. 190-200 PSI ! I new my compression would be high because my dynamic compression ratio is so high. But still thought that was pretty significant over the stock 130-150 PSI.
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