Don't forget the OEM tip collapse's On OEM boost especailly once warm....Now your in the 20psi area...
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Cupra R - Forge Remap Logs....feels slow
- Thread starter ChrisGTL
- Start date
Is that right? I thought it was just a case that they COULD collapse under stage 1 boost so should be fine on standard map? Ive got a sillicone TIP now anyway so shouldnt be collapsing any more 
just logged again on my lunch break, fuelling is still doing same thing, and MAF still only peaking around 180 ![[:@]](/forums/styles/seatcupra/oldforumsmileys/furious.gif "Furious [:@]")
think I will get on to Forge to see if they will maybe reflash it as I can't see it being the fuel pump etc as surely only actual would be affected and requested would not be sitting at 0.953 the whole way through......
think I will get on to Forge to see if they will maybe reflash it as I can't see it being the fuel pump etc as surely only actual would be affected and requested would not be sitting at 0.953 the whole way through......
left a message in forge's section linking to this so they can see all the previous logs etc, they are thinking there is a possible air leak somewhere...
If it were a boost leak, would there not have been the boost leak (check DV) fault code thrown before it lost this much power? does anyone know what the threshold is for this DTC?
and if it were a vac leak, surely the additive fuel trim would be more out than 0.2?
I am going to go up there on friday to see if they can find anything wrong with the car as I am getting fed up of this now!
does anyone else have any more input? Bill, if you are still reading this do you have any ideas?
Niall, did you find anything to sort your similar issue?
cheers
Ben
If it were a boost leak, would there not have been the boost leak (check DV) fault code thrown before it lost this much power? does anyone know what the threshold is for this DTC?
and if it were a vac leak, surely the additive fuel trim would be more out than 0.2?
I am going to go up there on friday to see if they can find anything wrong with the car as I am getting fed up of this now!
does anyone else have any more input? Bill, if you are still reading this do you have any ideas?
Niall, did you find anything to sort your similar issue?
cheers
Ben
Hi Ben, I still haven't had a chance to get the car logged again since I had some work done on it lately so not sure what state it's in yet. It's going on the rollers at a local RR day next week tho so hopefully that will show what's going on.
From what I've read about boost leaks, depending on the exact circumstances they can be pretty bad before the ECU realises something is up. That said, 0.2 add. fuel trim doesn't sound like much? I thought the tolerance was +/-10?
Given your fuelling is out tho your g/s may be a symptom of that, in as much as the ECU may be cutting back the requested boost to prevent things getting dangerously lean. Just as a test tho, have you got or have access to another air filter (even OEM box and panel filter) you can pop back in just as a test?
The only things I got done that could feasibly affect this were new spark plugs, fuel filter and injector seals, this thread's so long now I can't remember if you've tried all those or not! I know you were talking about spark plugs at one point tho so maybe it's not that but mine hadn't ever been done that I can make out so did them anyway.
I'll be sure to post back here if I have anything to report, let us know how you get on at Forge tho.
From what I've read about boost leaks, depending on the exact circumstances they can be pretty bad before the ECU realises something is up. That said, 0.2 add. fuel trim doesn't sound like much? I thought the tolerance was +/-10?
Given your fuelling is out tho your g/s may be a symptom of that, in as much as the ECU may be cutting back the requested boost to prevent things getting dangerously lean. Just as a test tho, have you got or have access to another air filter (even OEM box and panel filter) you can pop back in just as a test?
The only things I got done that could feasibly affect this were new spark plugs, fuel filter and injector seals, this thread's so long now I can't remember if you've tried all those or not! I know you were talking about spark plugs at one point tho so maybe it's not that but mine hadn't ever been done that I can make out so did them anyway.
I'll be sure to post back here if I have anything to report, let us know how you get on at Forge tho.
its been running shite since the last set of plugs which where NGK 1 grade colder for mapped application, to the current bosch standard plugs so yeah would expect they are playing no part in this....
To be honest I havent had a chance to dig out my old airbox, I doubt it is that though as I think the car was mapped with the Jetex in place, and I did try putting the old air box on earlier this year and the car definately seemed slower. Really cant see this causing the issue to be honest.....
Do you know whether a boost leak would cause the adaptive trim to be out, or is this usually just affected by vac leaks?
If you are correct in saying that boost leaks have to be major before the ECU throws a wobbly then this may possibly be where it's all going wrong? but then again, surely a boost leak would leave actual not meeting requested boost figures?
It seems as though for every possibility there is an argument against it!! so annoying!
Does your car feel as if its back to how it should be though?
To be honest I havent had a chance to dig out my old airbox, I doubt it is that though as I think the car was mapped with the Jetex in place, and I did try putting the old air box on earlier this year and the car definately seemed slower. Really cant see this causing the issue to be honest.....
Do you know whether a boost leak would cause the adaptive trim to be out, or is this usually just affected by vac leaks?
If you are correct in saying that boost leaks have to be major before the ECU throws a wobbly then this may possibly be where it's all going wrong? but then again, surely a boost leak would leave actual not meeting requested boost figures?
It seems as though for every possibility there is an argument against it!! so annoying!
Does your car feel as if its back to how it should be though?
Bit difficult to tell really, mine does feel better yes but then the general air temps are getting colder now, also I had new gearbox oil put in too so if the old stuff was really past it then that will free up a little power. It's going on the rollers next week so will hopefully be able to tell from that.
Vac leaks will upset the fuelling, yes, because if a vac hose has split or become perished and is no longer sealed then it'll let more air into the intake manifold so the ECU's readings will be inaccurate. Boost leaks will generally show up as actual not meeting requested and in that case the ECU will cut fuelling to bring the ratio back into line with what air pressure is available.
Hopefully Forge should be able to spot something. Can't remember, have you had your boost hoses leak tested?
Vac leaks will upset the fuelling, yes, because if a vac hose has split or become perished and is no longer sealed then it'll let more air into the intake manifold so the ECU's readings will be inaccurate. Boost leaks will generally show up as actual not meeting requested and in that case the ECU will cut fuelling to bring the ratio back into line with what air pressure is available.
Hopefully Forge should be able to spot something. Can't remember, have you had your boost hoses leak tested?
No havent had it leak tested yet, but like we both said, if there was a boost leak surely you can tell from actual vs requested figure, and vac leak will show up from additive trim, so personally I'm a little doubtful that there is a leak....
I hope I'm wrong and thats all it is making for a nice cheap easy fix...!
I hope I'm wrong and thats all it is making for a nice cheap easy fix...!
Yeah meant to update this but forgot, they flashed it back to standard map - there was less power lower down as the boost wasnt kicking in as early as it was with the remap, but at higher revs there was not a huge amount of difference to be honest... my laptop was broken so couldnt log it back on standard map unfortunately..
then reflashed the forge map back on and it is back to how it was before feels the same and I did a quick log and still seem to be hitting around the 0.95 lambda values....
In fairness to Forge, they did offer to flash it back to standard and give me my money back, which does go along with their brilliant reputation for customer service, but I said I am willing to try a few more things such as FPR, maybe injectors / fuel pump if they are not too big a job first.
A little bit stumped now to be honest......
then reflashed the forge map back on and it is back to how it was before feels the same and I did a quick log and still seem to be hitting around the 0.95 lambda values....
In fairness to Forge, they did offer to flash it back to standard and give me my money back, which does go along with their brilliant reputation for customer service, but I said I am willing to try a few more things such as FPR, maybe injectors / fuel pump if they are not too big a job first.
A little bit stumped now to be honest......
Hmm, could really have done with seeing logs when on the standard map. If the price of the remap hasn't changed maybe you could take them up on the offer but put the cash to one side, then log it once you've fixed your laptop? Then if its' still the same you've ruled out the remap and head back there to get it put back on.
Bit off-topic but what made you go for a Forge remap? I could be wrong but I'd have thought that Revo, Custom Code etc. would be more tried and tested?
Bit off-topic but what made you go for a Forge remap? I could be wrong but I'd have thought that Revo, Custom Code etc. would be more tried and tested?
Yeah I know I was a bit gutted that they wouldnt log it for me on standard or when mapped again...
Got the laptop half working again when I got home and logged it now its reflashed but its still fuelling lean so dont think it is the map... considering getting money back and trying another map, maybe the revo free trial so theres no commitment if its the same result....
chose them as they were cheaper than revo custom etc and they werent too far out of my way on the trip from warminster to huddersfield...
Got the laptop half working again when I got home and logged it now its reflashed but its still fuelling lean so dont think it is the map... considering getting money back and trying another map, maybe the revo free trial so theres no commitment if its the same result....
chose them as they were cheaper than revo custom etc and they werent too far out of my way on the trip from warminster to huddersfield...
Well guess that still leaves fuel pump and FPR, only thing is I don't know how you'd check that either of these was working properly without swapping it for another one. Have a search on here or post, don't think FPRs are very much to buy but fuel pumps are about £80. You could check the vacuum hose that goes to the FPR, think it runs under the manifold.
Cupra Ross had a thread on a similar issue to this, think I posted it in this one already. Turned out his problem was the fuel pump. I'll try and find that thread and have another read over it.
Might be worth finding other folks that have had a Forge remap on their car and see if any of them have had similar issues?
Cupra Ross had a thread on a similar issue to this, think I posted it in this one already. Turned out his problem was the fuel pump. I'll try and find that thread and have another read over it.
Might be worth finding other folks that have had a Forge remap on their car and see if any of them have had similar issues?
That was the impression I had that the FPRs were cheap enough but it was the fuel pumps that were the pricey part.... like you say I cant think of anything except replacing them....
Yeah had a read of Cupra Ross's thread ta, and I have visually checked the FPR vac hose as far as I can see it....
dont really know of many people with Forge map thats the problem
Yeah had a read of Cupra Ross's thread ta, and I have visually checked the FPR vac hose as far as I can see it....
dont really know of many people with Forge map thats the problem
Not really sure what to suggest tbh, as far as I know my map is standard and last time I logged mine it was running lean just like yours with slightly higher g/s. Actually hang on a minute, maybe I've got a Forge remap too!
Not really sure what to suggest tbh. I still need to get mine logged again to see if I've still got problems, if so then I'd be tempted to swap out the fuel pump if money were no object but I'm supposed to be saving for a house at the moment and have other niggles with the car needing sorted too (slight oil leak for one).
Anyone still getting subscription updates to this thread got any ideas on how to test a fuel pump is working correctly?
Not really sure what to suggest tbh. I still need to get mine logged again to see if I've still got problems, if so then I'd be tempted to swap out the fuel pump if money were no object but I'm supposed to be saving for a house at the moment and have other niggles with the car needing sorted too (slight oil leak for one).
Anyone still getting subscription updates to this thread got any ideas on how to test a fuel pump is working correctly?
Same situation, dont want to spend loads on the car as need the money for a house..... I hope some people still do have subscriptions to this but doesnt look like it
No havent done this, do you know if there is a built in sensor for fuel pump psi that can be logged in vagcom, and if not, when you say 'easily install'.... how easy is it lol
Good idea, gonna have to look into this as well. What fuel pressure should we be seeing, is it 3bar?
Might also be worth testing the battery voltage, read somewhere that the pump will show less flow if it's not getting enough power.
Some One like Bill will now as he;s a good mapper it should be stable through out the rev range on wot..
Invite Bill in to the convo..
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