Member Since: 06 Mar 2017
Location: Lost
Posts: 4627
Don't you mean Kelvin
Seriously though Nige isn't that high for what is supposed to be a cooled air charge?yµ (idµ - eAµ) ψ=mψ
15th Mar 2022 6:22 pm
nigethecat
Member Since: 11 Sep 2016
Location: Marnoch
Posts: 4142
I knew you'd pick me up on that
Does seem very high, even with the bonnet shut and the car stationary I wouldn't expect to see it much above ambient....I want to see the sweets before I get into your windowless van... I'm not stupid!
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15th Mar 2022 6:56 pm
Chris1573
Member Since: 12 Feb 2021
Location: Stroud
Posts: 196
Ok Prof, so could be a bad Intercooler ? Where is the sender that records this temperature chaps ?
15th Mar 2022 8:24 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4627
I don't think it an intercooler issue or your problems would be much bigger in terms of the fault occurrence rate. Have a look at this below taken from a hot!! engine (note oil and coolant temps and RPM!)
The boost air temp sensor sits into the throttle housing intake, but to get it near +40°c I believe you would need an ambient/intake temp of 23°c or above? It may not actually be an actor within your current issue, but it does look abnormal at least to my eyes.
No harm to have a look over the intercooler for wet spots though!yµ (idµ - eAµ) ψ=mψ
15th Mar 2022 9:11 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4627
See item No'10 on page 5 which shows the location of the boost air temp sensor. Ignore the other misprint illustrations which suggest the is inside the MAF (that's the IAT sensor)
Your sensor might be OK but possibly clogged with crud causing a false reading.yµ (idµ - eAµ) ψ=mψ
15th Mar 2022 10:41 pm
Chris1573
Member Since: 12 Feb 2021
Location: Stroud
Posts: 196
Hi Prof,
I did the school run this morning with live values running, the boost air temp at a 50MPH Cruise up and down a few minor gradients varied between 14 & 20 degrees So I think the high result yesterday was I took the screenshot having just clmibed a steep lane at slow speed up to the house so little air flow through the intercooler.
I also ran data logging whilst trying to recreate the fault with a foot flat to the floor run up a long steep hill and depsite two goes I did not manage to recreate. So this could be down to my efforts with the spray lube and actuator jiggling yesterday however I think this will be one of those things I ignore until it becomes a problem on a more regular basis.
I am going to be towing more over the Summer so this is when I suspect the fault might be reocurring.
16th Mar 2022 11:37 am
Chris1573
Member Since: 12 Feb 2021
Location: Stroud
Posts: 196
One question on the boost pressure reading. My maximum when I was logging the values as I floored it up the hill was 2.36BAR or 236KPA. is this withing expected limits ?
16th Mar 2022 11:58 am
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4627
I'm not sure Chris what the max boost under high load conditions would be. If I can find something relevant I'll post it.
Don't have any hills around here only mountains. yµ (idµ - eAµ) ψ=mψ
16th Mar 2022 2:38 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4627
Here you go.
Click image to enlarge
This was taken from a fully warmed up engine and the max boost (floored in 5th gear) on level surface @60kph was about 235kPa. It would need a load on the hitch or steep climb to get above this I think.
So I'd say your value of 236kPa is bang on and at near the max limit possible given the conditions. yµ (idµ - eAµ) ψ=mψ
16th Mar 2022 7:01 pm
Donprice
Member Since: 30 Jun 2022
Location: Havant
Posts: 1
Hello new here everyone,
After having the p132b code come up I tried to free the quite rigid actually free via the passenger side heat guards, it moved back and fourth a little, but not massive amounts. She surges at low and high speeds, REVS fluctuating and sometimes feels like I'm driving a boat, juddering forward when I stop to a halt sometimes. What to do next? See some people try to move the actuator via the battery area? The light doesn't come on straight away now, like it used too. Comes on maybe 5 mins into a journey, but the surging is worse. For the first time today drove 25 mins motorway driving and the engine temp was at 1/4 , always thought they went to half way after abit of driving, please any help or advice? Kind regards don
30th Jun 2022 10:00 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13608
Hi Don
First, welcome to the asylum
May i ask did u spray any lubricant onto the actuator whilst moving it back and forth please , personally found it easier removing the passenger wheel, heat shields and then making up a rod from an old metal coat hanger , enclosed the link just in case u haven’t seen it
After gaining access if u get someone to turn the ign on and then off do u see the turbo actuator arm moving , as it should have a software program that is programmed to move the actuator arm as part of an anti seize process
With a torch have a look at the turbo , can u see any traces of oil around the hoses where they attach to the turbo please , if so one of the hoses might be split, clamp loose or broke
On a run have u seen any black smoke , removed and carefully cleaned ur Map sensor
Do u have access to ur own diagnostics plse as would get a full fault code list , plus live data showing the injectors
At the end of the day is best to ensure the turbo actuator is fully freed off along with using a lubricant spray, Map sensor is clean, plse don’t put anything down the hole , checking ur intercooler hoses , then getting live data of injectors , fault codes and live data will be extremely useful to u , otherwise ur start chasing ur tail and not getting anywhere
Lastly, ensuring with the engine off ur battery reads a minimum of 12.6 Vdc
Hope the above helps a little to give u a head start
1st Jul 2022 5:46 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10360
If the temp gauge isn’t getting to half way then a sensor is probably at fault.
Usually the oil temp sensor in the side of the sump is the problem.
And if that doesn’t fix it, the coolant temp. sensor.
This may / should fix 60% of your drivability issues.
1st Jul 2022 8:13 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13608
Hi Pete
Wish I knew a fraction of ur knowledge , as always so impressed , thks again
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