I really love these forums as these have gave quite some training on DIY jobs... recently i am experiecing a very strange problem... My car RPM dives to 0 as i press the exlerator for a second and revives again that causes at times car to stall... the problem occurs sometimes and sometimes it runs fine... the things i already tried are.
1. Changed fuel pump + filter
2. Chevron to clean up fuel flow
3. WD40 in the actuator to clean injector carbon etc.
4. changed a sensor at 1'oCLock facing the engine.
5. Checked the MAF.
6. Changed Air filter
Could it be the CPS ( is there more than one thing called CPS i.e. Crankshaft or Camshaft) where is it and how to change it.
on the scan nothing appears, only a misfire at 3rd injecter, i checked it its working fine, and i also wont doubt it because the problem is not constant it comes and goes.
One more finding on above case is that... If i push the accelerator slowly the RPM does not dive where as if i accelarate abruptly , it dives and comes back.... any IDEAS...
CPS usually runs, or not.
I would suspect that your MAF is going bad and that why you have misfiring code.
Taking that MAF on those cars are becoming consumable, I would buy new MAF and try it. If it something else, than you have spare MAF, that you are going to need rather sooner, than later.
CPS usually runs, or not.
I would suspect that your MAF is going bad and that why you have misfiring code.
Taking that MAF on those cars are becoming consumable, I would buy new MAF and try it. If it something else, than you have spare MAF, that you are going to need rather sooner, than later.
throttle actuator would be a good guess. it's easy to replace, but is $$$. take a look at this, throttle actuator removal is the last two pictures at the end of the page MercedesShopWiki: W124 Engine Wiring Harness Replacement
it is from a w124, but you should have the same setup, as long as you have the m104 inline 6 engine.
1 more question... if u press the accelarator briskly (quickly all the way down) should the RPM respond spontaniously or is there some time difference due to ECU calculating all sorts of stuff??? I can understand RPM responds immediately in the old engines where no ECU was involved ... but since these cars are electronic....???
Vehicle: 2001 E320 - Brilliant Silver/Ash: MBCA member
Location: The Mountain State
Posts: 6,031
With mine, the car responds immediately when I press the accelerator. If there is a delay for the ECU to calculate some things, it is so brief that I do not notice it. Good luck with your problem.
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