Originally Posted by MMZ_TimeLord
HDDP,
It could be a combination. Do you need me to take a fuel pressure reading on my SRT6? (have to get a gauge) I forget whether this has been done on an SRT6 yet.
If the SRT6 has the same pressure and the pump voltage is not being changed during engine operation, then I would conclude it was only pulse width that was being change.
Good info!
No need to get the fuel pressure... They are all running 55-60 PSI... What would help is if you could give me the product numbers of that pump that sits on the driver side wheel well... My Bosch guy says that the 508***** part number is usually fuel related... But as usual here's the response...
"The part number you gave me, which must be missing the first 0, is fuel related. The 580 designates that it could be a fuel pump, pulsation eliminator, or a regulator. It is another number that we have never sold in the US and has not been established in our computer system".
If you can give me the MB part number, I can cross reference it with my MB parts wholesaler...