alrite troops

the things been losing power past few weeks, not much in way of boost going on.. its about 40 to 60% power of what it normally is..

black smoke on full throttle..

pretty poor mpg compare to what i was getting.. prolly cos all the fuels leaving in a puff of black smoke when i throttle it lol

if i drive like a granny im getting high mpg but if i put the foot down it ready like 5 , 10mpg on the dash until i ease my foot off..

cleaned the egr to nice n shiny...

removed the air filter to see if any difference. nothing...

disconnected maf... and the black smoke vanished 100% but felt like driving a 1.2 or 1.4 🤦‍♂️🤣

the lower boost pipes got 4 bolts in it, so cant be that, cos it kept jumping off...

could it be a major boost leak somewhere?? turbo gone bad?? or something else....

lost the power 1 day few weeks back, and been the same ever since..

one of my calipers was sticking and the car drive as if it was part braking all the time, didnt roll for sht ... and mpg was a killer ... sorted the caliper and it rolls again... hoped the power would be back... but is it fk 😭😭

 

4 hours ago, vrsfabia-mk1 said:

the lower boost pipes got 4 bolts in it, so cant be that, cos it kept jumping off...

could it be a major boost leak somewhere?? turbo gone bad?? or something else....

lost the power 1 day few weeks back, and been the same ever since..

You can also pop an "upper boost pipe", so you need to check every connection point from turbo to intake manifold...

You need a new MAF so start there, also replace the CTS, it might be a coincidence that you lost power with the cold weather but I doubt it, if it's still bad replace the fuel temperature sensor in the fuel filter assembly.

when i take the maf off theres no black smoke but i lose about another 30% power of the already lowered amount. it used to have basically zero black smoke but a sht load of power, until 1 drive when everything changed over a 50 mile journey.

 

if the maf was functioning ok as is... and i have a major boost leak under boost load above 1800rpm would that drop the power and create the black smoke on its own... even if everything jing else is ok at the moment.

 

i want to figure it out without just throwing money at things to see if it on the offchanve helps or maybe fixes it.

 

the temp gauge on the dash doesnt stay steady at mid way... it is mainly  lower (about 50 to 70% of the way from cold to mid) and then now and then goes up to the normal mid zone when i put the foot down for a bit. it never goes past mid way standard temps tho.. not over heating at all.

6 hours ago, KenONeill said:

You can also pop an "upper boost pipe", so you need to check every connection point from turbo to intake manifold...

i got one of the front mount intercoolers off ebay... ive not fitted it ,so maybe that'll help.. or sort the problem if its boost pipe related

1 hour ago, sepulchrave said:

You need a new MAF so start there, also replace the CTS, it might be a coincidence that you lost power with the cold weather but I doubt it, if it's still bad replace the fuel temperature sensor in the fuel filter assembly.

is cts .... coolant temperature sensor?

i only got the car 2 months ago.. it drives and smokes the same if minus 10 , or plus 10 degrees outside.

6 hours ago, KenONeill said:

You can also pop an "upper boost pipe", so you need to check every connection point from turbo to intake manifold...

i got one of those mityvac mv8500 vacuum and pressure testers the other day... u reckon i could use that to test for boost pipe leakage by pressuring it using the hand pump?

over the past couple weeks i have the glow plug light come on flashing... and EML... and car was crawling , but back then one of my calipers had been seized so might have been related to that ?? once i reset the  codes and EML it drove, not back to normaly.. but at least could get over 30 in it 😅 i doubt glow plugs make u lose power cos they only get used when starting up from cold i think.

46 minutes ago, vrsfabia-mk1 said:

if the maf was functioning ok as is... and i have a major boost leak under boost load above 1800rpm would that drop the power and create the black smoke on its own... even if everything jing else is ok at the moment.

Yes, just like when mine popped an upper pipe after a cambelt change. With a loss of power and major black smoke.

5 minutes ago, vrsfabia-mk1 said:

i got one of those mityvac mv8500 vacuum and pressure testers the other day... u reckon i could use that to test for boost pipe leakage by pressuring it using the hand pump?

 

It might take you three or four hours to pressurise it but you'd get there in the end!

 

Just visually inspect the boost pipes in case one has popped out of the joint.

 

10 minutes ago, vrsfabia-mk1 said:

is cts .... coolant temperature sensor?

i only got the car 2 months ago.. it drives and smokes the same if minus 10 , or plus 10 degrees outside.

 

Ambient air temperature is measured by the the MAF and the MAP sensors, you need a new MAF for sure, but MAP sensors tend not to go wrong.

CTS sensors always go wrong and are cheap to replace anyway.

 

Don't talk yourself out of doing something if you're guessing, I'm not guessing I'm applying experience troubleshooting engine problems for forty years.

2 minutes ago, sepulchrave said:

 

It might take you three or four hours to pressurise it but you'd get there in the end!

 

Just visually inspect the boost pipes in case one has popped out of the joint.

 

 

Ambient air temperature is measured by the the MAF and the MAP sensors, you need a new MAF for sure, but MAP sensors tend not to go wrong.

CTS sensors always go wrong and are cheap to replace anyway.

 

Don't talk yourself out of doing something if you're guessing, I'm not guessing I'm applying experience troubleshooting engine problems for forty years.

always appreciate the help budd from you and all the others giving me tips on the post bro 🙏

Turned out it was the lower intercooler hose had torn apart 😅😅

Got a new one to fit, but cos the intercooler connector been ravaged with 4 self tappers.. 

Gonna self tap it on or use a couple of jubilees and 13mm 115kg strength cable ties

Test drove it a few times but it popped off each time after a mile or so cos was only using shty cable ties with no jubilees.. 

Power is back, and black smoke completely gone 🙏

Bound to get it on solid one way or another with all these bits n bobs lol

One a these ways probs🙏

 

 

Edited 8 February, 20233 yr by vrsfabia-mk1

4 hours ago, vrsfabia-mk1 said:

Turned out it was the lower intercooler hose had torn apart 😅😅

Got a new one to fit, but cos the intercooler connector been ravaged with 4 self tappers.. 

Gonna self tap it on or use a couple of jubilees and 13mm 115kg strength cable ties

Test drove it a few times but it popped off each time after a mile or so cos was only using shty cable ties with no jubilees.. 

Power is back, and black smoke completely gone 🙏

 - Kind of said as much, sight unseen. My upper pipe that popped was reconnected using genuine Terry Jubilee clips (accept no substitutes, especially not VAG spring clips) and has stayed together ever since.