Re: Tuning or fix jetta 'goes flat' ~4500+RPM (phart2005)
Set the DPR current to 10mA, see how it runs. Many DVOMs have an ammeter scale in that range. You'll need to fabricate some leads.
The OXS warning light is simply a 30k interval service reminder, it is in no way connected or associated with the engine management.
Look for a counter box, follow the speedo cable up to the firewall, push the button with a pencil or some such (fingers won't fit the recess).
Set the DPR current to 10mA, see how it runs. Many DVOMs have an ammeter scale in that range. You'll need to fabricate some leads.
The OXS warning light is simply a 30k interval service reminder, it is in no way connected or associated with the engine management.
Look for a counter box, follow the speedo cable up to the firewall, push the button with a pencil or some such (fingers won't fit the recess).