1992 W140 119 engine, S500
HELP PLEASE

Car run fine initially. Couple of months ago, the car was in Limp Home Mode. Check engine wiring harness found out the insulation of wiring harness to the throttle actuator and to the injector were gone. Replace wiring harness to the injector and re-wiring the throttle wiring harness. Put all back together the car run realy smooth. After using it for a month or so... the engine start real rough and into LHM. The RPM jumping up and down. Also black smoke coming out from the exhaust. Spray the Air Mass Sensor... no difference.
Check the rest of the wire - all ok.
Check all vacuum line - they are all ok.
Replace fuel pressure regulator - no difference.

Use a Trisco Palm Scanner (PS-411-BENZ) to read code and these are the results.
LH, HFM, ME(R)
Read DTC - system normal
Read store DTC, two codes appear. 05 and 10.
Code 05 says Intake air temp sensor shorted or open CKT.
Code 10 says O2S 1 signal, shorted or open circuit.

LH,ME(left) - No ECU control or no data.

ETC system - No data from vehicle

DM system - No data from vehicle

EDS system
two code, 10 and 13
Code 10 says No description.
Code 13 says Elec. Diesel sys. ctrl unit faulty (internal fault memory)

BM system - system normal

DI system - system normal

EA/CC/ISC
Code 224 says Idle speed contact switch S29/3 fault

EZL system - system normal

OP system - system normal

PML system
Code 03 says (1) LR wheel speed signal error. (2) LF wheel speed sensor and circuit fault (W129/W140 since 94)
Code 04 says (1) RR wheel speed signal error. (2) RF wheel speed sensor and CKT fault (W129/W140 since 94)

ABS/ETS/ESP - system normal

BAS system - no ECU control or no data.

ADS system - data error

ASD system - data error

SPS system
Code 11 says Volts supply at speed sensitive power steering Ctrl module faulty.
Code 17 says no description

SRS system
Code 139 says no description
Code 03 says low volts, voltage supply circuit 15R

ICM system - no ECU control or no data

RST system - system normal

RB system - data error!

IRCL system - communication interrupted

PSE system - system normal

ATA system
Code 15 says IO SIG not received from interior motion sensor or button on interior motion sensor transmitter and receiver unit pressed at least once or infrared interior motion sensor control unit (N26/3) not present or defective

CF system - system normal

AC system - system normal

OCP system - No ECU control or no data
LCP system - No ECU control or no data
PTS system - No ECU control or no data
EIS system - No ECU control or no data
D2B system - No ECU control or no data

Try to delete the codes, however the following codes cannot be erased.

EA/CC/ISC
Code 224 says Idle speed contact switch S29/3 fault

SRS system
Code 139 says no description
Code 03 says low volts, voltage supply circuit 15R

Sleepwalker, lugnut, mbz300sdl, c280 wizard, k1motorsport, snanceki, and all people from forum.... Please HELP...

 

check all of the engine bay wiring harness. A problem on these cars.
cear all the codes and even try the battery disconnect. Repeat this several times.
Let us know.

 

Thanks Bill.
Have check all wiring in the engine bay. They are all good.
I have disconnect the battery several times now and the problem still there.
Clear all code but these codes keep coming back. And they are:
EA/CC/ISC
Code 224 says Idle speed contact switch S29/3 fault

SRS system
Code 139 says no description
Code 03 says low volts, voltage supply circuit 15R

Please help...

 

I believe what i need to do is to walk in the dark alone.
Thanks everyone.

 

No one?!
It's the air flow meter or you call it air mass meter.

 

were you able to solve your problem? just went on line and saw your problem, if its solve then great if not let me know.

 

Yes. Problem solve. It is the air mass meter. Thank you.