Bernd,
Any knowledge of the Mopar Performance PCM? Will the MIL trip on
those PCMs as well or still "software" dependant?
Thanks,
Mike
On Thu, Jul 24, 2008 at 5:17 AM, Bernd D. Ratsch <bernd@dodgetrucks.org> wrote:
>
> Yup...replacing the O2 isn't going to fix it. The High-Flow cats change the
> readings just enough to trip the "Cat Efficiency" code. This happens but
> not on all vehicles - it's software revision dependant. Your best bet: Get
> an O2 simulator for the rear O2.
>
> - Bernd
>
> -----Original Message-----
> From: Ewraven [mailto:ewraven@gmail.com]
> Sent: Thursday, July 24, 2008 1:07 AM
> To: dakota-truck@dakota-truck.net
> Subject: Re: DML: Check engine light from high flow cat. Was: Magnaflow CAT
> (23246)...Best price instock?
>
>
> Interesting that you should ask this question right now. I too have a
> 1999 4x4 5.2 liter Dakota, mine has the 5 speed manual transmission.
>
> Like three months ago, I had a Magnaflow high flow cat put on my
> truck. However, I had him upgrade it from the factory size of like
> 2.5 inches to using a three inch in/out cat with a three inch diameter
> pipe from the Y-pipe to the cat and from there it uses a reducer to go
> from the 3 inch cat back to the factory 2.5 inch pipe to a 40 series
> Flowmaster utilizing the factory tailpipe.
>
> Roughly one months after all of this was installed, my check engine
> light came on. I don't recall the exact code it throws, it is for a
> bad catalytic converter though. The check engine light has turned off
> twice since then but came back on within a day after each time.
>
> I'm going to be replacing the o2 sensor after the cat in hopes that it
> is fouled up or just plain old. I mean, the truck does have 137,000
> miles on it! If that doesn't make the light go off, I'm not sure what
> I'll do. I mean the only other option is to replace the cat with a
> non high flow unit I guess.
>
> Anyone got any suggestions for my particular problem?
>
> The sound with this particular combination of exhaust parts is just
> plain intoxicating!
>
>
>
>
This archive was generated by hypermail 2b29 : Fri Aug 01 2008 - 00:06:48 EDT