Check the FPR hose as Shogun suggested. I would bet your issue is to do with a vacuum leak or fuel problem.
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Thank you for the tips. I will keep you posted after I troubleshoot the components you guys pointed out.
All the best!
Hello guys,
I haven't checked the FPR yet because I was building an ADS interface to scan error codes. Here they are:
Code:E R R O R M E M O R Y --------------------------------------- Datum: 12.11.18 19:14 ECU: DME331 JobStatus: OKAY Variante: DME331 ------------------------------------------------------------- RESULT: : 4error in error memory ! ! ------------------------------------------------------------- 69 Knock sensor Channel 2 Error counter : 59 Engine speed 3400.00 1/min Coolant temperature 36.00 Grad C Hexcode=45A855703B 0.00 [HEX] Open circuit Invalid working area (Plausibility fault) Fault stored after de-bouncing delay Error not present Sporadic error ------------------------------------------------------------- 36 Tank ventilation valve Error counter : 51 Engine speed 1480.00 1/min Coolant temperature 68.25 Grad C Hexcode=24F2259B33 0.00 [HEX] Short circuit to ground Open circuit Exhaust gas relevant fault Fault stored after de-bouncing delay Error present Sporadic error ------------------------------------------------------------- 19 Secondary air pump Error counter : 50 Engine speed 4360.00 1/min Coolant temperature 87.75 Grad C Hexcode=13A16DB532 0.00 [HEX] Short circuit to batt+ Open circuit Fault stored after de-bouncing delay Error not present Sporadic error ------------------------------------------------------------- 7 VANOS magnetvalve Error counter : 53 Engine speed 4200.00 1/min Coolant temperature 24.75 Grad C Hexcode=07B1696135 0.00 [HEX] Short circuit to batt+ Open circuit Exhaust gas relevant fault Fault stored after de-bouncing delay Error not present Sporadic error =============================================================
- I find strange that VANOS valve is wrong since it is brand new. Maybe because of a faulty knock sensor #2 VANOS isn't working properly?
- Regarding the tank ventilation valve, I'm looking for information on the Bentley manual.
- I have no idea on what to do with the Secondary air pump error since I think my engine isn't fitted with one.
Any thoughts?
Thanks!
Finally after several years trying to figure why my engine ran like crap, I finally discovered that the culprit was a toasted engine harness. From the maintenance history of my car I saw a number of overheating situations and a few replaced radiators. I figured that maybe some wires of the engine harness suffered from the high temperature incidents and it came to be true. I was trying to test continuity between the MAF connector and the DME connector and I had two broken signals. Upon further investigation, a few wires disintegrated as I slightly pulled them.
The car successfully passed all emissions tests without tricks. Below the results:
gas_emissions.png
I think the idle values are a bit rough. Also I can feel that the engine vibrates a little at idle and I can hear a whistle coming from ICV. I did vacum leak tests and found none. Is a whistle a sign of a bad ICV and engine vibration at idle? I replaced spark plugs and checked coils and coil boots and found no issues there.
Thanks!
Last edited by TRF434; 03-08-2022 at 07:18 PM. Reason: Image insert
Hello how are you? Finally, after making the harness change, did you install the oxygen sensor that is supposed to come in that slot, or did you leave it working without it?
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