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Reload this Page PO421:Warm Up Catalyst-below threshold (bank #1) CEL
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Old Jun 15, 2009, 05:05 PM   #1
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PO421:Warm Up Catalyst-below threshold (bank #1) CEL
08 lancer gts cvt pzev. i have RRM header and the CEL elimanater lately been pulling this PO421:Warm Up Catalyst-below threshold (bank #1) CEL code. is ths a problem with RRM product and is there any way to fix this product
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Old Jun 15, 2009, 06:06 PM   #2
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I think that the CEL eliminator is not doing it's job.
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Old Jun 15, 2009, 06:32 PM   #3
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Did you call RRM about it yet?
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Old Jun 16, 2009, 05:15 AM   #4
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call rrm. There have been other reports of this. I think it ended up being an install error, but I'm not 100%.
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Old Jun 19, 2009, 03:19 PM   #5
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i sent countless emails and no one answered me back and tried calling no answer. guess ill have to try again this weekend. figures also the SES light went back out on its own and i also noticed RRM pulled the PZEV header and the CEL box off there web site.
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421, bank, catalyist, catalyst, fix, lancer, met, po, po421, problem, threshhold, threshold, warm, warmup

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