Thanks Bernd. I check that this evening. What should the voltage be at the
injector?
By the way glad to see you back.
Jim Nelson
""Bernd D. Ratsch"" <bernd@dodgetrucks.org> wrote in message
news:FLEBLMGMFEJAHIGMOFLNMEIICAAA.bernd@dodgetrucks.org...
>
> Nope...those are Injector #2 and #8 failure codes. Check the harness on
> the
> passenger side of the engine (rear of the head) for a pinched or chaffed
> wiring harness (seen that a few times). Also, check the voltages of those
> two injectors with a DVOM. Put one terminal to ground (from the meter)
> and
> the other to the driver side of the injector (at the connector - backprobe
> it with a paperclip if you can). Start the engine and watch the voltage -
> if it fluctuates replace the injector...if it doesn't - time to check the
> wiring to the PCM or possibly replace the PCM.
>
> With the TPS issue, you can easily check it with an analog voltmeter.
> Connect the meter to the TPS signal wire and the other to ground and watch
> the sweep of the needle. If it's smooth, no problem with the TPS. Don't
> bother checking the TPS with a DVOM as they don't properly show the sweep
> at
> all (not even recommended by DC to use a DVOM on that).
>
> - Bernd
>
> -----Original Message-----
> From: jim nelson [mailto:JAMESNELSON@LBINDUSTRIALSYSTEMS.COM]
> Sent: Monday, February 12, 2007 10:16 AM
> To: dakota-truck-moderator@bent.twistedbits.net
> Subject: DML: Variable RPMs
>
>
>
> On the way back from the coast this weekend my check engine light came on.
> RPMs started flucuating, like it was dropping in and out of over drive.
> Made it home and scanned it had P0202 and P0208, injector malfuntion.
> Have
> done some research on the web and have come up with replacing the TPS.
> This
> sound right?
>
> Jim Nelson
> '00 QC 4.7 98,000 miles
>
>
>
>
This archive was generated by hypermail 2b29 : Thu Mar 01 2007 - 00:44:23 EST