Thread: TD5 auto no throttle response

Have you tried lifting off the throttle and pressing down again mine has been doing this for a while and I think it might be a sticky waste gate

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I have a similar problem. Almost every time I start the car for the first 20 or so seconds it lacks power. I can get the car to move but only slowly, revs and limited and boost is low. If I have the pedal down a bit when that 20 seconds is up all of a sudden it goes WHOOSH and takes off.
I was also suspecting the wastegate being stuck open but that would mean it would have been stuck open when I stopped and should have noticed something funky the previous drive. Ill also point out for me if I just let the car idle for 20-30second and then drive off, everything functions perfect.

Originally Posted by singlecell

I have a similar problem. Almost every time I start the car for the first 20 or so seconds it lacks power. I can get the car to move but only slowly, revs and limited and boost is low. If I have the pedal down a bit when that 20 seconds is up all of a sudden it goes WHOOSH and takes off.
I was also suspecting the wastegate being stuck open but that would mean it would have been stuck open when I stopped and should have noticed something funky the previous drive. Ill also point out for me if I just let the car idle for 20-30second and then drive off, everything functions perfect.

I believe this can be attributed to a faulty MAP. ECU uses default settings after this time? a search on D2 forum as someone else had same time delay issue and talked about it - earlier this year iirc.

That is an indication of a Faulty MAF sensor - disconnect the MAF wiring plug and see if there is any change. Best way to check out if it is working is to read the air flow using a Nanocom.

Well I thought I would use my nanocom to check out my sensors, never really bothered as never thought what I had was an actual problem. My MAF reads 4.3gr/hr all the time, idle and moving..... Suspect I may have a faulty one!

Originally Posted by singlecell

Well I thought I would use my nanocom to check out my sensors, never really bothered as never thought what I had was an actual problem. My MAF reads 4.3gr/hr all the time, idle and moving..... Suspect I may have a faulty one!

NSS. May be telling you the obvious but buy a real VDO MAF, not a cheap copy.

Originally Posted by bsperka

NSS. May be telling you the obvious but buy a real VDO MAF, not a cheap copy.

Yep, already ordered a VDO one before I made the post. Should be interesting to see how the car changes.

Thanks for the advice will check the MAF.