ITG Maxogen Intake for 2.0TFSI

[Janner_Sy]

remember him saying you drove off without yours. good of him to mail it to you. That new heat shield seems better as well with its new plastic rim where the filter goes through!

[gazbutS3]

remember him saying you drove off without yours. good of him to mail it to you. That new heat shield seems better as well with its new plastic rim where the filter goes through!

yes much better, the old one was digging into and chaffing the aluminium part of the filter, so he sent me a new filter too , so I have a spare to swop straight over instead of cleaning. Can then clean the dirty filter at my leisure and put back on the self for next time

[cupra_k1]

Great write up Steve 

Has anyone else checked their fuel trims on block 032 of VCDS after fitting the ITG?

[Janner_Sy]

is that not in steves forst post right at the bottom? not to be stupid, but any chance of an explanation as to what this fuel trim figure means, and what effect it has

[cupra_k1]

is that not in steves forst post right at the bottom? not to be stupid, but any chance of an explanation as to what this fuel trim figure means, and what effect it has

Fuel trims show the amount of adjustment the ecu is having to make to correct the cars fueling. They are displayed as a percentage, the nearer the fuel trims are to 0% the better, as this means little adjustment is needed. There are many factors that can result in unhealthy fuel trims such as boost and vac leaks or faulty sensors etc. An incorrectly scaled maf housing can also result in this as it will cause the maf to misread the amount of airflow that is being injested into the engine. Of course this shouldn't be a factor with the ITG as it has a correctly scaled maf housing unlinke many other aftermarket cai's available on the market.

Here is a more in depth explanation on fuel trims: http://www.ross-tech.com/vag-com/cars/fuel-trim.html

The reason i asked is because my long term fuel trims are showing up to +7% since fitting the ITG, but as i mentioned above this may be caused by one of many things.

[Janner_Sy]

thats interesting. thats something i might have to log when i next get to have a blast on VCDS.

re-reading stevePs first post. he has a value of 1.8% for his fuel trim.

Thanks for the link. Interesting read. im going to have adlve through that site. been tempted with VCDS for a long time

[GTIjames]

im currently at 6.3% - only had it on since friday though... previously dbilas

will keep an eye on it to see if it drops at all.

[Janner_Sy]

does this mean that ideally you require the remap to be tweaked to make the mostof the extra incoming air

[GTIjames]

I have tweaked my map - revo st 2+ settings are b8 t6 f6 , kev  @ revo recommended to go to b 9 but not yet tried

im not sure how 'long' long term fuel trims are measured over, as i said its only been on a couple of days so to early to judge

Andy @ ITG noticed the dbilas did not have the correct size MAF so hopefully if all is well with the rest of the car then I should notice these drop over the next few weeks, finger crossed

[cupra_k1]

thats interesting. thats something i might have to log when i next get to have a blast on VCDS.

re-reading stevePs first post. he has a value of 1.8% for his fuel trim.

Thanks for the link. Interesting read. im going to have adlve through that site. been tempted with VCDS for a long time

Its deffinately worth the investment mate. Its the best purchase i ever made whilst owning VAG cars.

I noticed Steve's LTFT's were at 1.8% which is very reasonable as factory limits are within +/-12%. My Dbilas with and incorrect size maf housing (before i modified it) showed only slightly higher fuel trims than what i am seeing now with the ITG.

does this mean that ideally you require the remap to be tweaked to make the most of the extra incoming air

On the Revo code you may be advised to lower the fuel setting to compensate for the increased airflow from the ITG, however the ecu is very clever and will adjust certain perameters appropiately to a certain extent.

im not sure how 'long' long term fuel trims are measured over, as i said its only been on a couple of days so to early to judge

im currently at 6.3% - only had it on since friday though

The ecu is continuously making adjustments therefore your fuel trims may change regularly. Having said that after a couple of days your car should have adapted and the fuel trims should settle round about there.

Funny that your seeing pretty much identical LTFT's to me though James which i personally feel are a little high for a properly scaled maf housing. Would be interesting to see what readings other people are getting.

With this aside, i am more than happy with the ITG and certainly wouldn't opt for any other cai given the opportunity agen  

[RedRobin]

does this mean that ideally you require the remap to be tweaked to make the most of the extra incoming air

On the Revo code you may be advised to lower the fuel setting to compensate for the increased airflow from the ITG, however the ecu is very clever and will adjust certain perameters appropiately to a certain extent.

....I was advised to lower my Boost setting (not my Fuel setting) on Revo2 (oem fuel pump) to accommodate increased air input so that the ECU wouldn't action protective fuel cuts.

[Igor]

[quote author=cupra_k1 link=topic=9698.msg150363#msg150363 date=1260228962
thats interesting. thats something i might have to log when i next get to have a blast on VCDS.

re-reading stevePs first post. he has a value of 1.8% for his fuel trim.

Thanks for the link. Interesting read. im going to have adlve through that site. been tempted with VCDS for a long time
[/quote]

Its deffinately worth the investment mate. Its the best purchase i ever made whilst owning VAG cars.

I noticed Steve's LTFT's were at 1.8% which is very reasonable as factory limits are within +/-12%. My Dbilas with and incorrect size maf housing (before i modified it) showed only slightly higher fuel trims than what i am seeing now with the ITG.

On the Revo code you may be advised to lower the fuel setting to compensate for the increased airflow from the ITG, however the ecu is very clever and will adjust certain perameters appropiately to a certain extent.

The ecu is continuously making adjustments therefore your fuel trims may change regularly. Having said that after a couple of days your car should have adapted and the fuel trims should settle round about there.

Funny that your seeing pretty much identical LTFT's to me though James which i personally feel are a little high for a properly scaled maf housing. Would be interesting to see what readings other people are getting.

With this aside, i am more than happy with the ITG and certainly wouldn't opt for any other cai given the opportunity agen  
[/quote]

Having got the dbilas, I'm more than curious on how you modified your MAF housing, having blown the years budget on handling mods, I can't afford a new CAI until February at the earliest...

[cupra_k1]

does this mean that ideally you require the remap to be tweaked to make the most of the extra incoming air

On the Revo code you may be advised to lower the fuel setting to compensate for the increased airflow from the ITG, however the ecu is very clever and will adjust certain perameters appropiately to a certain extent.

....I was advised to lower my Boost setting (not my Fuel setting) on Revo2 (oem fuel pump) to accommodate increased air input so that the ECU wouldn't action protective fuel cuts.

Lowering the boost setting instead of richening the a/f ratio would make sense on a car with a standard HPFP as your restrited by the amount of fuel pressure that can be delivered. But i was refering to a KO4 Stage 2+ map where an uprated HPFP is required hence the ability to lower the fuel setting to cater for the amount of added air being delivered. On a KO4 Revo Stage 1 car (standard HPFP) with boost set above 6, the likelihood of experiencing a fuel cut is reasonably high therefore with boost set above 6 i personally wouldn't advise fitting a cai anyway, but thats just my opinion.

Anyway...... back on topic 

[cupra_k1]

Having got the dbilas, I'm more than curious on how you modified your MAF housing, having blown the years budget on handling mods, I can't afford a new CAI until February at the earliest...

I just made a 4 inch long 67mm id sleeve which i inserted inside the maf section and machined a spacer to centalise the maf sensor in the housing. The fuel trims were pretty much bang on then.

[GTIjames]

went out for a good long drive today and checked the long term fuel trims after a few hours and they have dropped to 3.9%

so it is certainly improving over the 6.8% it was the other day just after fitting

still very pleased with it, turbo seems to spool up quicker, noise is v nice and when crusing on the motorway in 6th the car feels like its got so much power no need to downshift it just pulls from 70 to ??? so quickly - this has been the most noticeable difference when compared to the dbilas  - much more top end power