Hello all - Newbie here, with a problem. In June we purchased a minty 2009 Sedona - one local owner, 94K km, no accidents, very clean, no rust, good maintenance, etc.
It was pretty much what we'd been looking for, and we love the large & very versatile interior.
We did our first big road trip, out to the Canadian Rockies, and encountered the dreaded CE light/loss of power three times.
Per the ScanGauge, the engine had gone into Open Loop mode, and the TPS would not respond to throttle input. The first time I had only bike tools with me, and was unable to remove the negative battery terminal to 'reboot' the system. After a few minutes it corrected itself, and was OK for almost a week.
About six days later it did it again. I was able to disconnect the negative this time, and that corrected the problem immediately.
It did it a 3rd time on the way home, and this time disconnecting the battery didn't work the first few times, although it did eventually correct itself. We were fine for the last 1200 or so km home, although I did notice the van bucking a bit whether or not we were using cruise.
In all cases, the ScanGauge was unable to read the code(s) or reset the CE light.
My online research seems to point to a bad TPS. Unfortunately I can't get an aftermarket one locally, and the dealer wants about C$660, even with a generous discount.
I've found the Cardone remanufactured ones online, and they're much cheaper.
My questions:
1. Is the TPS/TB likely the problem?
2. Is the Cardone a good unit?
3. There's been talk of the ECU/PCM having to be synched to the new TPS/TB. Is this so? I like to do my own maintenance & repairs, and would prefer not to have to take it in.
4. The one plug I pulled looked very good still other than being a bit sooty. I wonder if the TPS/TB problem has caused the engine to run rich?
5. Mileage was a bit disappointing on the trip - driving 100 - 110 kph, the van used c. 11 - 12 litres/100 km. I'd expected better - what are other people's experiences?
Thanks in advance for your help!
It was pretty much what we'd been looking for, and we love the large & very versatile interior.
We did our first big road trip, out to the Canadian Rockies, and encountered the dreaded CE light/loss of power three times.
Per the ScanGauge, the engine had gone into Open Loop mode, and the TPS would not respond to throttle input. The first time I had only bike tools with me, and was unable to remove the negative battery terminal to 'reboot' the system. After a few minutes it corrected itself, and was OK for almost a week.
About six days later it did it again. I was able to disconnect the negative this time, and that corrected the problem immediately.
It did it a 3rd time on the way home, and this time disconnecting the battery didn't work the first few times, although it did eventually correct itself. We were fine for the last 1200 or so km home, although I did notice the van bucking a bit whether or not we were using cruise.
In all cases, the ScanGauge was unable to read the code(s) or reset the CE light.
My online research seems to point to a bad TPS. Unfortunately I can't get an aftermarket one locally, and the dealer wants about C$660, even with a generous discount.
I've found the Cardone remanufactured ones online, and they're much cheaper.
My questions:
1. Is the TPS/TB likely the problem?
2. Is the Cardone a good unit?
3. There's been talk of the ECU/PCM having to be synched to the new TPS/TB. Is this so? I like to do my own maintenance & repairs, and would prefer not to have to take it in.
4. The one plug I pulled looked very good still other than being a bit sooty. I wonder if the TPS/TB problem has caused the engine to run rich?
5. Mileage was a bit disappointing on the trip - driving 100 - 110 kph, the van used c. 11 - 12 litres/100 km. I'd expected better - what are other people's experiences?
Thanks in advance for your help!