1995 MB S420 Starts fine but Boggs down and dies after 2000 rpms
 

Hello all and hope everyone had a great thanksgiving. I just bought this car about a month ago and I had to have it towed home after driving it to get gas. At first I thought it was the Transmission but not anymore. The car starts up fine everytime, but when I go to give it gas it gets up to 2000 rpms and boggs down and wants to die unless I feather the pedal. I have have replaced MAF, checked my plugs and wires, replaced battery because it was bad, inspected the wires on my ETA( they are brittle and degraded). I was planning on having it rewired this weekend. I was going to buy a fuel pressure gauge to test fuel pressure. Can someone tell me how to test the fuel pressure? I am not sure what is wrong with this car and want to get it running like normal. Any help would be great. I have done a lot of reading on numerous forums and I also checked the codes on the onboard OBDI scanner. The codes that come up even after clearing them and then driving it (it only goes 20mph) are as follows: 6 idle control inoperable, 10 MAF too low/high voltage, 19 open /short at fuel injectors. I checked the voltage at each injector and they all are the same even when I rev up the engine. I looked at the main harness wires and they dont look as bad as the ETA wires. Please help with this car... Thanks a bunch!!!

Randy

So K6JRF's page states this stuff about my codes. Does anyone have an idea to help me by telling me how I am supposed to test the LH-SFI module or the electronic acceleration? I almost have the ETA out as to start the rewire. Thanks everyone!!!
CODE 6:Idle speed control inoperative
CODE 10:
Voltage at mass air flow sensor too high/low
CODE 19:
Fuel injectors open/short or self-adaptation in LH-SFI control
module (N3/1) at limit
Test electronic accelerator

Test LH-SFI unit


Test LH-SFI unit and reset adaptation to mean value