₦airaland Forum

HeavenlyBang:


I dey lurk that joint steady. Una funny die. Wey Lexusgs430 with im pump price?

Lexusgs430:
No be Mercedes-Benz una dey talk about, àbi nah another type of Mercedes?.....

Make una remember say, nah Mercedes consume Toyota sienna o.........

HeavenlyBang:


I dey lurk that joint steady. Una funny die. Wey Lexusgs430 with im pump price?

kingreign:
Ehen, men Dem dey show their colours. I hear say ogbeni Nairaland Admin/Mod Na active participant for that joint.

Eddee:
s.e.u.n dey make steady cameo appearances on a low - which grapevine you hear the gist? You're a suspect!

weyreypey:
Inspect and if okay buy....but I hate converted w203's even when unconverted they look somehow in the engine bay. Meanwhile the model is plagued by defective electricals...

DreCharles:
Hello guys. I eventually scanned the car and got these codes.

P0170..Fuel trim bank 1
P0301, P0302, P0303, P0304....Cylinder1 to 4 misfire
P0340... Camshaft Position Sensor A Circuit Bank 1 or Single Sensor

I want to believe p0170 is responsible for the cylinder misfires but I welcome any suggestions.
As for the p0170, Google search revealed air filter, air filter housing, MAF sensor as likely causes. I've changed the maf and air filter. The air filter however looks good.

Any suggestions pls?

Also how do I tackle the p0340 error. What do I look out for?
Thanks in anticipation.



Just removed plugs. All dead and buried. Lol. Please who can get me platinum spark plugs suitable for 2003 w203 c200. Location is Abeokuta, Ogun state.

weyreypey:
Hehehe you got a great sense of humour. One of the most important tools for modern cars especially the Mercedes Benz is the multimeter tester.... Simple but very critical.

Truth is if you give me a basic lexus or Toyota I'll be very confused....
1mz 2mz 2gr 4fe engines...wtf do those mean?

I feel supremely confident and comfortable with my m111 m102 m112 m113 m104 m103 m272 engines...

syntax50:
PLEASE RECOMMEND ME A MULTIMETER TESTER FOR A W203 2006 MB.
THANK YOU...

Eddee:
Don't you have an electrician already? Any electrician worth his salt must have a multimeter or a semblance of it (screw driver with a bulb attached to a wire ), what exactly do you want to test? Is it battery voltage, or fuse/relay current and resistance?

If it's battery voltage, your Merc can measure it and give you live readings without the need for a multimeter

Eddee:
Don't you have an electrician already? Any electrician worth his salt must have a multimeter or a semblance of it (screw driver with a bulb attached to a wire ), what exactly do you want to test? Is it battery voltage, or fuse/relay current and resistance?

If it's battery voltage, your Merc can measure it and give you live readings without the need for a multimeter

syntax50:
Thankx bro; this airmass is the same as air flow ryte?
Doesnt mb stsar scanner detect issues airflow issues?

shortgun:
Yes

syntax50:
So if an mb star scanner didnt detect any airflow issues is it safe to assume the problem isnt from airflow

shortgun:
I suggest u get another maf and test it...if that doesn't work u will have to change the ECM(brainbox).

DreCharles:
Oh really, how much does a new brain box cost and will I be able to get one that will match the car?

Actually the update is, I did a thorough cleaning of the throttle body, replaced spark plugs, changed nozzles and replaced the maf, cleaned the tps with fuel. I went back for scanning and only got cylinder misfires error code, yes the car was still misfiring occasionally, and throttle is still not revving when depressed.


Car hard starts in the morning and rpm will fluctuate for some seconds before normalizing. My mechanic says it's a fuel filter issue. Please advice.

Cc: nurey, kingreign, weyreypey, heavenlybang, eddee

shortgun:
Is it the same cylinder(s) that was misfiring b4 u did the cleaning that still misfires after the cleaning and plugs change?

syntax50:
So if an mb star scanner didnt detect any airflow issues is it safe to assume the problem isnt from airflow

DreCharles:
Oh really, how much does a new brain box cost and will I be able to get one that will match the car?

Actually the update is, I did a thorough cleaning of the throttle body, replaced spark plugs, changed nozzles and replaced the maf, cleaned the tps with fuel. I went back for scanning and only got cylinder misfires error code, yes the car was still misfiring occasionally, and throttle is still not revving when depressed.


Car hard starts in the morning and rpm will fluctuate for some seconds before normalizing. My mechanic says it's a fuel filter issue. Please advice.

Cc: nurey, kingreign, weyreypey, heavenlybang, eddee

DreCharles:
Same cylinders, yes

Eddee:
Did you replace with original Bosch or Denso spark plugs? I hope you didn't use those fake NGK. Please scan that vehicle ASAP

DreCharles:
Vehicle has been scanned. Will replace with original spark plugs asap. What I want to know is will faulty fuel filter cause it not to rev when throttle is depressed . Note that, if I switch off and start again, throttle will respond

shortgun:
If multiple cylinders are misfiring check fuel pump,fuel filter,nozzles,maf.
Also check if the coils are getting electric current..
Good luck.

DreCharles:
Oh really, how much does a new brain box cost and will I be able to get one that will match the car?

Actually the update is, I did a thorough cleaning of the throttle body, replaced spark plugs, changed nozzles and replaced the maf, cleaned the tps with fuel. I went back for scanning and only got cylinder misfires error code, yes the car was still misfiring occasionally, and throttle is still not revving when depressed.


Car hard starts in the morning and rpm will fluctuate for some seconds before normalizing. My mechanic says it's a fuel filter issue. Please advice.

Cc: nurey, kingreign, weyreypey, heavenlybang, eddee

DreCharles:
Thanks.
Fuel filter has been fingered as the culprit but I'll have the fuel pump checked too as a precaution. Nozzles and maf has been changed last week when the issue just occurred.

Eddee:
A lot of things can cause your symptoms. Post the DTC you got after scanning, a bad TPS maybe

shortgun:
You are welcome I just read that you've replaced nozzles and maf, I've modified my comment; focus your attention on the fuel pump and filter now.

weyreypey:
Hard start fuel pump/filter... It can also cause misfire due to fuel starvation

DreCharles:
DreCharles:

Original codes
P0170..Fuel trim bank 1
P0301, P0302, P0303, P0304....Cylinder1 to 4 misfire
P0340... Camshaft Position Sensor A Circuit Bank 1 or Single Sensor

Then I cleaned throttle body, change nozzle, maf, air filter

Drove fine but started getting misfires and non rev occasionally. Rescanned and got just the cylinder misfires codes

DreCharles:
Okay, I'll check and replace. Thank you.

Eddee:
Let's start with the easy one first, where have you been getting fuel lately? I hope you didn't throw away that MAF? As for the nozzles, did you buy a complete set (direct toks - shouldn't be more than 4k), I still suspect the spark plugs and coils (a multimeter will confirm this).

Stop throwing parts at it, if you dey Lagos - carry that motor track Gazzuzz (no worry, offline him dey work Mercedes, you know see that Range Rover wer him wan sell, who you think say bin dey maintain am?)

I hope these are not the spark plugs you put in that Merc?