D4D gutless

[Lee4ster]

Hi everybody and thanks for welcoming me to the Toyota owners club. I have recently purchased my first Toyota, a very sensible Corolla Verso D4D D-CAT. She was purchased in a haste as I've been after one for ages with a towbar. After driving her I thought she was a bit gutless considering that she's a 2.2 and 172bhp. Nevertheless I purchased her and thought after a service she would perform fine. But, after a full service (which she needed) the car was still gutless, foot flat to the floor and nothing until the turbo kicked in at 2,000 rpm. So things like overtaking a pushbike on a hill is a no, no. My mechanic suggested a EGR valve replacement (at £231) for the part alone, but hey, I like the car and would do anything to get this thing moving. I've now had it fitted and it's made no difference. The car will eventually get to motorway speeds but it's taking a long time and I'm constantly working the box to get up hills etc. Does anyone have any idea what can be the problem? I've been told that maybe it's the CAT converter that's partially collapsed, because if it was fully collapsed I'd have no power at all. I can't keep throwing money at this car although I dearly love driving her. I used to have a Passat TDI and that thing moved even though it was a low powered model. The Toyota Corolla Verso is a 2008 model, with the 2.2 D4D engine. I'm sure other people have had this issue and can pin point me in the right direction. Thanks once again if you can help.

[fordulike]

Sorry, I can't advise on your particular engine, but I did own a Nissan 2.2DCi a while back, which would become gutless every now and then. That only had 136bhp and went like a rocket, so yours should be picking up incredibly fast.

Here are some things I used to do to restore the get up and go:

• Cleaned the EGR valve, which won't apply in your case
• Cleaned the MAF sensor. See this link http://www.mafcleaning.co.uk
• Replaced the fuel filter (unlikely that they replaced this at service, worth checking if they did though)
• Checked all air intake hoses for leaks
• Checked all turbo hoses and intercooler for leaks
• Gave it an Italian tune-up... Google it... It works very well on diesel cars and totally free

You could also try using this stuff, then giving it an Italian tune-up:

Wynns Diesel EGR Air Intake Flow Sensor Inlet Valve MAF Cleaner 150ml Spray

[Cyker]

The two most common reasons for that are:

1) Crud build-up on the injectors

2) EGR blockage

The first can be sorted out with a good hard run with some injector cleaner in the tank or fancy fuel like V-Power diesel.

The second needs to have the EGR and everything along it examined; While we say it is the EGR, in the vast majority of cases the actual EGR valve is fine, but the throttle body it feeds that mixes the EGR air and turbo output is where the blockage occurs.

 

On mine there was a small port/hole about the size of a 5p where the EGR flowed out and it was solidly blocked with soot; Had to take the whole throttle body out to soak it in carb cleaner and poke it with a screw driver until it was all cleaned out, then sprayed some carb cleaner up the channel that feeds it and loads of dissolved soot flowed out.

 

[P-ster]

As mentioned I would at least firstly try additives for cleaning the fuel system; mainly injectors. Buy BK244, add it in to a fill up of Shell V-Power Diesel then go for a drive. Won't do any harm, only good. Worked for me (along with EGR clean out) .

 

[HartmannX]

One there are also very important is to get the intake cleanet, often have to take it of. carbon builds up over time.

/HartmannX

[Lee4ster]

I've just logged on after such a long time. Sorry... Well it was the turbo activator that was the issue, had my mechanic take it to a specialist to find this out. Not cheap but well worth it. I did replace the ERG valve also, this wasn't the issue, but hey, i've got a new EGR valve and managed to sell the old one as this wasn't the issue. Now I just need to replace the front headlights, clutch and get the front washers sorted and I'll be OK for another year!