Ibiza 1.8t kangerooing when maintaining revs
Discussion
2005 seat Ibiza 1.8t bjx
The issue I’m having is that when maintaining revs between 3500 and 4500 the revs bounce up and down violently. The car has a “pop and bang map”, which is what I think is causing the problem. The guy I bought it off said he got it with the map, didn’t know who did it or have any paperwork or evidence. I was also told it has 200bhp
This happens mostly when driving on the motorway, 80mph maintaining speed, or when speeding up then suddenly letting off and maintaining speed/revs. Always the same throttle position, sort of in the medium between making it pop and bang and actually accelerating. I can hear the diverted valve repeatedly dumping air.
I am pretty stumped on it, can only think that the pop and bang map has made it so that the engine is confused between popping and normal operation within that rev range.. after speaking to a bloke who runs very reputable tuning garage near me he says he could write me a stock map for the car, if this doesn’t fix it I can go away and keep trying.
Anyone have any ideas before I go get my map taken off? Don’t want to do that to then find it’s something else.
Thanks in advance
The issue I’m having is that when maintaining revs between 3500 and 4500 the revs bounce up and down violently. The car has a “pop and bang map”, which is what I think is causing the problem. The guy I bought it off said he got it with the map, didn’t know who did it or have any paperwork or evidence. I was also told it has 200bhp
This happens mostly when driving on the motorway, 80mph maintaining speed, or when speeding up then suddenly letting off and maintaining speed/revs. Always the same throttle position, sort of in the medium between making it pop and bang and actually accelerating. I can hear the diverted valve repeatedly dumping air.
I am pretty stumped on it, can only think that the pop and bang map has made it so that the engine is confused between popping and normal operation within that rev range.. after speaking to a bloke who runs very reputable tuning garage near me he says he could write me a stock map for the car, if this doesn’t fix it I can go away and keep trying.
Anyone have any ideas before I go get my map taken off? Don’t want to do that to then find it’s something else.
Thanks in advance
Had the car for 5 months. Bloke sold it because he wrote off his old car and used it as a gap filler for a bit, he was genuine bloke.
About throttle body issues, I was actually thinking that, when thinking about it logically, it’s dumping boost, doesn’t sound like it’s running bad, literally is as if I tapping the throttle but it bounces faster and more significant than I can do trying to replicate it that way
Tried to do an alignment using internet knowledge
I tried
Key turned to ignition - full throttle for 5 secs - key out
But no luck couldn’t hear any movement despite having the bonnet open and putting my ear to the throttle body
Anyone know what the sequence actually is for this? Or if it’s a throttle pot would that be new body job
About throttle body issues, I was actually thinking that, when thinking about it logically, it’s dumping boost, doesn’t sound like it’s running bad, literally is as if I tapping the throttle but it bounces faster and more significant than I can do trying to replicate it that way
Tried to do an alignment using internet knowledge
I tried
Key turned to ignition - full throttle for 5 secs - key out
But no luck couldn’t hear any movement despite having the bonnet open and putting my ear to the throttle body
Anyone know what the sequence actually is for this? Or if it’s a throttle pot would that be new body job
Mikehodgkins said:
Had the car for 5 months. Bloke sold it because he wrote off his old car and used it as a gap filler for a bit, he was genuine bloke.
About throttle body issues, I was actually thinking that, when thinking about it logically, it’s dumping boost, doesn’t sound like it’s running bad, literally is as if I tapping the throttle but it bounces faster and more significant than I can do trying to replicate it that way
Tried to do an alignment using internet knowledge
I tried
Key turned to ignition - full throttle for 5 secs - key out
But no luck couldn’t hear any movement despite having the bonnet open and putting my ear to the throttle body
Anyone know what the sequence actually is for this? Or if it’s a throttle pot would that be new body job
So you have had this car for 5 months, and it has been fine all that time ? And this is a recent new problem ?About throttle body issues, I was actually thinking that, when thinking about it logically, it’s dumping boost, doesn’t sound like it’s running bad, literally is as if I tapping the throttle but it bounces faster and more significant than I can do trying to replicate it that way
Tried to do an alignment using internet knowledge
I tried
Key turned to ignition - full throttle for 5 secs - key out
But no luck couldn’t hear any movement despite having the bonnet open and putting my ear to the throttle body
Anyone know what the sequence actually is for this? Or if it’s a throttle pot would that be new body job
History matters.
Mikehodgkins said:
Tried to do an alignment using internet knowledge
I tried
Key turned to ignition - full throttle for 5 secs - key out
But no luck couldn’t hear any movement despite having the bonnet open and putting my ear to the throttle body
Anyone know what the sequence actually is for this? Or if it’s a throttle pot would that be new body job
Just my 2p.I tried
Key turned to ignition - full throttle for 5 secs - key out
But no luck couldn’t hear any movement despite having the bonnet open and putting my ear to the throttle body
Anyone know what the sequence actually is for this? Or if it’s a throttle pot would that be new body job
I wouldn't expect that to do anything as because the engine isn't running why should the ECU tell the throttle to go open?
Could easily be wrong, just a thought.
E-bmw said:
Just my 2p.
I wouldn't expect that to do anything as because the engine isn't running why should the ECU tell the throttle to go open?
Could easily be wrong, just a thought.
I think he's talking about the throttle calibration routine you can do on VAG cars. It does make a clicking noise if it works, but i'm not convinced it actually calibrates anything.I wouldn't expect that to do anything as because the engine isn't running why should the ECU tell the throttle to go open?
Could easily be wrong, just a thought.
Find somebody with VCDS who can read the codes and reset the adaptations to rule it out. The instructions are on the Ross Tech website.
That said it sounds like more than that. Any chance there's a split or loose hose?
Yeah had the car 5 months, has been an issue since I bought it. Unfortunately didn’t realise for a few days.
As for the throttle calibration, yeah I’ve tried resetting it, taking it to my local garage to have some unrelated work done and have asked them to look at the throttle body. As for finding someone with vcds, how would I go about finding someone? I have previously asked for help on the seat Ibiza’s owners club page on Facebook but no responses
As for the throttle calibration, yeah I’ve tried resetting it, taking it to my local garage to have some unrelated work done and have asked them to look at the throttle body. As for finding someone with vcds, how would I go about finding someone? I have previously asked for help on the seat Ibiza’s owners club page on Facebook but no responses
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