I would try a map sensor first as they are only around £35.
I had a similar problem, although i dont have a boost guage fitted, Icould tell my boost was surging in a similar way to yours. After fittinga new map sensor all is well now.
Glynn
you wont hit 400lbft with standard injectors though
mine are maxed out at 355lbft
ok rollers differ so on rs rollers i could have 380lbft but on p-torques i only got 355lb ft
as glynn said, try a map sensor, if still the same, try a new maf sensor, ive had two faulty ones from GSF car parts in the space of two weeks, it happenend to me, i went round a roundabout, and put my foot down off the roundabout and the car just lost all power, and it was boosting weird, this turned out to be a broken maf again!!! this was the second GSF maf, never buying a GSF maf again!!!, always tps parts now, but your symptoms sound like mine tho mate, get a map and maf sensor, im sure it will be one of those
also my broken mafs didnt bring up a fault, the reason of this might be the sensor isnt reading correctly, but is just about functional not to bring up a fault code if you get me??? lol
I think the map sensor on the ibiza is hidden behind the left hand side bumper area up inside the wing - at least that's where it is on the PD160.
Any clues on what I'm looking for? It's not what i thought it was.
Does it not seem weird that this sensor MAY have blown just as the work was done? Or could the new power push it to break if it were already weak?
Depending on the pipework it could be leaking around the seal ..... map sensor is located in the main boost pipe and detects boost levels. It's about the size of a small box of matches .... i didn't get pics of tonys car when the bumper was off and his is a different config to yours.
I think it's no.17 on that diagram
On the drives side? Ohhhh. :rollseyes:
I think it' the map sensor that plugs goes into the intercooler pipework as you mentioned - mines is somehow holding in with the clip broken - supposed to put tie raps on it but i forgot :s
Is that the side that pipework is on? I don't know the layout of the 130PD pipework very well ..... but it's a little box that screws directly into the plastic hardpipe
Actually 16 looks like it ....... should be simple enough to check, get the part number off yours and give David @ Sere a shout Or just ring him and say you need a price for a map sensor for a 130tdi Ibiza
Has it been damaged by something ......
I think it' the map sensor that plugs goes into the intercooler pipework as you mentioned - mines is somehow holding in with the clip broken - supposed to put tie raps on it but i forgot :s
Depending on the pipework it could be leaking around the seal ..... map sensor is located in the main boost pipe and detects boost levels. It's about the size of a small box of matches .... i didn't get pics of tonys car when the bumper was off and his is a different config to yours.
I think it's no.17 on that diagram
Worth checking connections at least - plus you're running a lot more boost now so any weak pipe joins will be suffering more than before. It's just possible that as the new increased boost comes in that a weak connection is being opened up?
map sensor is in the pipes from the intercooler to the intake manifold.
Ibiza 130TDi, looking at your avatar pic, it'll be in the top pipe
probably a bumper off job although if you jack up the car and remove the undertray, you might be able to get to it
(IIRC, held in with 2 no. Torx screws , or maybe allen head)
you wont hit 400lbft with standard injectors though
mine are maxed out at 355lbft
ok rollers differ so on rs rollers i could have 380lbft but on p-torques i only got 355lb ft
Trust me mate, yours wouldnt be making 380ft/lbs on RS' rollers. If anything it would be less. Seen it before.
As for not making 400ft'lbs on standard injectors, thats bullshit. I wouldnt have thought the torque would be limited by injectors, as torque is lower down the range, and they dont need to flow as much fuel, so shouldnt be the restriction.