Faizul Hasan

Hi experts, I recently bought (a month ago) a 1.3 K12 (CR12 engine) automatic with 60k mileage. Previous owner used Mobile 1000 (10W 30). However I am seeing that my car is doing 9kmpl in Colombo. I just searched through internet and found that ideally this should do around 12-13kmpl. I am not too harsh on accelerator within city driving and so far I didn't take this car for long drive. Previous owner told he already did a engine tune-up recently and I can see the receipts for it. I have two questions. Can I switch to Mobil 2000 (10W 40)? Why this small piece need 9kmpl within city limit? Is this normal or something I need to worry about? Thanks in advance.

@Twin Turbo thank you very much. I already changed the spark plugs (~10k drove after changing). I wonder if I have to replace ignition coil or distributor cap. Do you suspect there can be some carbon deposits which need to be kicked out?

Experts here, Looking for expert advice regarding rough idle and EGR, EVAP failures on my car Audi A4 B6 2004 1.6 engine. I have sporadic rough idle. When I scan, I found two issues. EGR System Regulation Divergence : P1403 - sporadic 008-Implausible pulse Potentiometer for EGR (G212): Signal too Low : P1443 - sporadic 007-Short to ground EVAP - failed When I talk with my service provider (not the Audi agent), they didn't worry about EGR issue and told it is exhaust gas related so to ignore it. They didn't say anything about EVAP (I also forgot to ask it later ). When I study about EGR and EVAP, I found that these two can contribute to rough idle too. I have sporadic rough idle and I have sporadic failures (both I don't like at all). So I feel these two could contribute to the sporadic rough idle my car faces. Interesting thing is that so far I didn't feel this rough idle when the A/C is ON. But my service provider seems they are not interested in fixing these two. My question is, do I need to worry about these issues and pressure them to fix? Because I feel the sporadic rough idle would be fixed by fixing these two? Thanks in advanced.

Thank you very much. Let me try on D900. Actually, 5000 is not a huge cost with compare to every time I go for a full service the service center charge me around 1500 for scanning

I do not have original device. But at vehicle service center they used to scan every time using the laptop connected via OBDII and USB cable. Do you know where shall I buy the original device?

I bought a cheap OBDII adapter (ELM327 V1.5 interface) from eBay. I can connect to the OBDII adapter using the multiple software. But every software result is same saying unable to connect ECU. Any experts here could help me on this, please? And one more important thing I have recently noticed is my check engine light never comes up when I put the key ON. I extremly need help on this too, please. Vehicle Info: Audi A4 B6 2004 1.6Engine

@fiat fan It is A4 B6. According to the wikipedia it says "It is performed after a traditional tuneup and often accompanied by an addition of fuel system cleaner to the fuel tank". Does this mean I have to do a tuneup (kind of Japanese vehicle tuneup)? BTW what kind of fuel system cleaner have you used? I am planning to visit my relative who is in Galle. Hence I thought of taking this as an opportunity to try this.

@fiat fan Got it. Suggest me the best procedures to do this please?

@ajm Great advice. Thank you very much.

Recently upgraded from Japanese car. You are true, I do not wanted to mess up with Japanese style engine tune-up. Hence asking for a place for Audi. Its a Petrol. Why do I think I need a tune-up? I feel a little sluggish when I am accelerating. Hence thought of doing a tune-up. @ajm Are you suggesting no need for an tune-up? Even don't we have to replace the spark plugs regularly? I have no idea when was the last replacement too. Please give your advice.

Any one here who can help me to suggest a good place for Audi A4 Engine Tune up please?