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Dr-Death
11-27-2007, 10:15 AM
Hi!

My engine is struggling at low rpm`s.
It is not running clean under 3000rpm, over is no problem.

I have changed;
Sparkplugs (platina)
Airfilter (superflow)
Oilfilter
Oil

I have also sandpapered the contactpoint on the rotor and the cap that goes over the rotor.

But still no results.
I took it to my local dealer too look for error codes, but none were found.

Some ideas?
seth98esT
11-27-2007, 10:18 AM
Are you getting good spark? Might try replacing the spark plug wires. When was the last time the distributor was replaced?
WarmAndSCSI
11-27-2007, 10:23 AM
Struggling at low RPM isn't indicative at all of a secondary ignition resistance/interference problem (that includes plugs, wires, rotor, cap). High-RPM missing/sluggishness would point to secondary ignition problems. Poor fuel atomization could cause low RPM problems.

Try a good injector cleaner like RedLine. Never rule out something as simple as faulty injectors. If you're fine at high RPM, it's not a restriction in the fuel system, though...
Kalamidad
11-27-2007, 10:41 AM
what work did you do to the car before it started?

have you done anything to your air inlet system? maybe a loose clamp somewhere?
check that the MAF is on tight...
mko
11-27-2007, 10:54 AM
Check PCV valve
Dr-Death
11-27-2007, 11:22 AM
I`ve tried without the MAF. Belive me, it`s connected.
The car was this way when I got it this september.

PCV valve?
What is that? (not so familiar with the english terms, care to explain?)
WarmAndSCSI
11-27-2007, 11:32 AM
I`ve tried without the MAF. Belive me, it`s connected.
The car was this way when I got it this september.

PCV valve?
What is that? (not so familiar with the english terms, care to explain?)

Positive Crankcase Ventilation - it's a check valve/fitting on the valve cover that has a vacuum hose running to the intake manifold. I seriously doubt that would cause low RPM problems. It's for pulling blowby out of the crankcase when you get a lot blowby (high load/RPM).

Do check for vacuum leaks, though. That could be causing your problems. A BROKEN PCV valve could be culprit if it's leaking vacuum to the atmosphere.