Sorry to cut in a little off topic...
But you guys said something about lambda working with Low reving and MAF at higher RPM, did I understand correctly?
Because that makes me wonder if I should continue to fiddle with the MAF... when the problem could be lambda!!! :-/
I have a 147 1.6TS 2001
Since I bought the car, I've been having engine light constantly coming on, after I keep deleting errors.
I believe they were:
I've leaved with it until now.
I have a different (used) MAF installed for 3 weeks now. The engine light came up the second time I used the car.
The idea of changing the MAF was to eliminate it as a suspect. But did it?
Also, with any of the two MAF, my 1.6TS seems to be a little lazy when crossing the 160km/h (100mi/h) in 5thgear?
Like it needs a little push like a gentle downhill for example? When it crosses that speed by 10km/h or less, it starts leaving again.
If it's going uphill, there's no way he's crossing the 100mi/h zombie barrier!
Could it just be the way a 1.6 reacts?
But now here's the real problem:
The car now runs poorly under the 2000RPM, special around 1750RPM. At 2000RPM it seems like a turbo kicked in! Specially noticeable 2nd gear, but happening in every gear under 2000RPM the car will cough for as long as it doesn't reach a certain rotation - then it will finally stop being lazy and act like the 120cv it's supposed to have!!
After that the car runs fine - no problems what so ever.
I have the car since it had 65000km (40300miles) and now it has 82000km (50950miles)
So I started wondering about the air filter change that I haven't ever done, and the spark plugs that were supposed to last for another 40000km (26000miles)
1- Yesterday night I removed the air filter and gave it a little clean (vacuum cleaner) - just to let you know. (I had to remove the first section of the pipe, that connects to the MAF) Didn't take the car for a ride.
2- Today I tried the "throttle reset" I went for a spin. At first it seemed like it was a little better. But the symptoms were still there.
3- Stopped the car and engine for some 5 to 10 min. Disconnected MAF plug. Took the car for a test drive.
Perfect idle and car running perfectly.
Darn!!!! IT's the MAF! I thought!
4- Stopped the car and engine. Just the time to reconnect the MAF.
The idle needed some seconds to adjust to 1000RPM. It steattled!
Test drive the car again. Perfect running just like WITHOUT the MAF. It can´t be! Did I connect the plug right??Or I'm I still running without MAF?!
5- Stopped at a gas station. Engine Stopped!
Gently verified the plug - It was in did correctly connected.
6- Started the car, and off I went again.
It seemed fine, still!...
... No!...The symptoms are still there after all! What the hell?!?
7 - Stopped the car immediately during the "coughing"!
Engine off. Just the time to unplug the MAF again!
OK!!!! Now it seemed the MAF was really OFF. No stabble iddle. The engine strugles to keep idle between 750 and 500RPM.
The symptoms seem all to be there, on top of the poor idling. Car is difficult to drive in traffic.
8- Almost getting home, I stopped the car to reconnect the Plug.
Again, normal idle settles, in a few seconds.
The rest of the ride, one block only, was uneventful. But I'm sure the symptoms are still there.
I'm starting to go crazy not knowing
I'll guess I'll just post all of this in a new topic, but, it felt right to say it here.