New Turbo Fitted now permanent limp mode - Page 2

cheshired5 · Mar 6th, 2016, 14:44

Before cleaning anything, I would be checking live data to see what the MAF and MAP are reading.
At idle, MAP should be around 14.5 psi and MAF should be around 13 g/s and both should then rise and fall in line with engine speed so check that first before doing anything else.

5cilinder · Mar 6th, 2016, 16:46

More important: Check the difference in desired airmass and desired boost with what is actually is generated (in vida you can read that out, but when you have no vida you can readout faultcodes wich will hint to a difference in desired and actual airmass)).
If the difference is to high you get limpmode due to boostleaks, vnt problems etc

webbyd5 · Mar 6th, 2016, 18:09

Cheers for that guys, does anyone recommend a half decent code reader to invest in? I dont have loads of money left though after the turbo purchase if I'm honest lol. I've been using a friends generic orange thing that he said was good to use as it reads volvo codes. The only thing being it just reads codes and turns off airbag abs lights, there is no live data reader....

cheshired5 · Mar 6th, 2016, 18:13

ELM327 dongle and the Torque Pro app was all I needed to get my D5 spot on.
Total outlay £8.

webbyd5 · Mar 6th, 2016, 18:20

Bloody hell! £8? Where was that from mate ebay?

cheshired5 · Mar 6th, 2016, 18:22

Yes ebay. The dongle is often less than £5 plus £3 for the Android app.

webbyd5 · Mar 6th, 2016, 18:31

I think that's got to be my safest bet hasn't it. I will try and get hold of one them and then post the results up once I've scanned. In the meantime I think I'll leave the old girl on the drive as it's pointless driving it with no turbo. It feels like a snail on wheels at the moment and makes pulling out on roundabouts scary!

webbyd5 · Mar 6th, 2016, 22:40

Just returned back home at around 9pm. I decided to start the old girl up and tinker under the bonnet. I managed to get the turbo to spool!!! Took it around the block and drove about 5 miles before the engine service required light came on. I did notice on boost that the turbo was whistling and that full boost wasn't achieved but much more power than yesterday, and after I turned the ignition back off and on again it came out of limp mode once again? So I have ordered the dongle as cheshired5 said l, buy in the meantime, would a split pipe or burst intercooler cause that kind of whistle and chutter sound when changing gear? I do have a cone filter on by the way I may have forgotten to mention that previously.

moorgate · Mar 7th, 2016, 00:51

it's a chicken and egg thing. The overboost splits the pipe *and* opens the wastegate - the pipe is a symptom not a cause.

webbyd5 · Mar 7th, 2016, 12:14

Hi Moorgate, which pipe are we talking about the fresh air to turbo or the black intercooler directly underneath the turbo?
Cheers
Dave

Mar 6th, 2016, 14:44	#11
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	Before cleaning anything, I would be checking live data to see what the MAF and MAP are reading. At idle, MAP should be around 14.5 psi and MAF should be around 13 g/s and both should then rise and fall in line with engine speed so check that first before doing anything else. __________________ 2002 S60 SE D5 Manual 209000 miles

Mar 6th, 2016, 18:13	#14
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	ELM327 dongle and the Torque Pro app was all I needed to get my D5 spot on. Total outlay £8. __________________ 2002 S60 SE D5 Manual 209000 miles

Mar 6th, 2016, 18:22	#16
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	Yes ebay. The dongle is often less than £5 plus £3 for the Android app. __________________ 2002 S60 SE D5 Manual 209000 miles

Mar 6th, 2016, 16:46	#12
5cilinder Premier Member Last Online: Today 04:48 Join Date: Oct 2011 Location: Groningen	More important: Check the difference in desired airmass and desired boost with what is actually is generated (in vida you can read that out, but when you have no vida you can readout faultcodes wich will hint to a difference in desired and actual airmass)). If the difference is to high you get limpmode due to boostleaks, vnt problems etc

Mar 6th, 2016, 18:09	#13
webbyd5 WebbyD5 Last Online: Dec 11th, 2016 21:44 Join Date: Mar 2016 Location: wigan	Cheers for that guys, does anyone recommend a half decent code reader to invest in? I dont have loads of money left though after the turbo purchase if I'm honest lol. I've been using a friends generic orange thing that he said was good to use as it reads volvo codes. The only thing being it just reads codes and turns off airbag abs lights, there is no live data reader....

Mar 6th, 2016, 18:20	#15
webbyd5 WebbyD5 Last Online: Dec 11th, 2016 21:44 Join Date: Mar 2016 Location: wigan	Bloody hell! £8? Where was that from mate ebay?

Mar 6th, 2016, 18:31	#17
webbyd5 WebbyD5 Last Online: Dec 11th, 2016 21:44 Join Date: Mar 2016 Location: wigan	I think that's got to be my safest bet hasn't it. I will try and get hold of one them and then post the results up once I've scanned. In the meantime I think I'll leave the old girl on the drive as it's pointless driving it with no turbo. It feels like a snail on wheels at the moment and makes pulling out on roundabouts scary!

Mar 6th, 2016, 22:40	#18
webbyd5 WebbyD5 Last Online: Dec 11th, 2016 21:44 Join Date: Mar 2016 Location: wigan	Just returned back home at around 9pm. I decided to start the old girl up and tinker under the bonnet. I managed to get the turbo to spool!!! Took it around the block and drove about 5 miles before the engine service required light came on. I did notice on boost that the turbo was whistling and that full boost wasn't achieved but much more power than yesterday, and after I turned the ignition back off and on again it came out of limp mode once again? So I have ordered the dongle as cheshired5 said l, buy in the meantime, would a split pipe or burst intercooler cause that kind of whistle and chutter sound when changing gear? I do have a cone filter on by the way I may have forgotten to mention that previously.

Mar 7th, 2016, 00:51	#19
moorgate Senior Member Last Online: Yesterday 22:56 Join Date: Apr 2015 Location: london, ec2	it's a chicken and egg thing. The overboost splits the pipe and opens the wastegate - the pipe is a symptom not a cause.

Mar 7th, 2016, 12:14	#20
webbyd5 WebbyD5 Last Online: Dec 11th, 2016 21:44 Join Date: Mar 2016 Location: wigan	Hi Moorgate, which pipe are we talking about the fresh air to turbo or the black intercooler directly underneath the turbo? Cheers Dave

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