Negative LTFT?

[zohaibrose]

New e92 owner here, just bought this 335. It runs good once warmed up but on cold start it idles real rough and the fuel trims are at -15 at idle ��

They change to about -12.5 when I rev it up. Just cleaned the maf and map sensor but didn’t seem to do anything, has a vrsf charge pipe, and a aftermarket inter cooler and the burger motor sports cai. Had a jb4 when I got it but have set it to map 0 and disconnected everything to stock. I for the life of me can’t figure out why it’s running so rich, tried doing a smoke test but smoke kept coming out of the hose that runs from the inter cooler to the turbo. Only codes I’m getting is p112e and p12a4

It’s a silicone hose so I don’t suspect it’s broken, I checked the oring it was fine, is smoke normal to come out that hose? Reseating it did not help.

[relative4]

Ages and indices of injectors?

Are you gonna eat that?

[zohaibrose]

Ages and indices of injectors?

Are you gonna eat that?
Eat what, Macdonalds? they have about 130k miles on em

[relative4]

At 130K, no real need to check the indices. Time for a new set.

Are you gonna eat that?

[mandd]

New e92 owner here, just bought this 335. It runs good once warmed up but on cold start it idles real rough and the fuel trims are at -15 at idle ��

They change to about -12.5 when I rev it up. Just cleaned the maf and map sensor but didn’t seem to do anything, has a vrsf charge pipe, and a aftermarket inter cooler and the burger motor sports cai. Had a jb4 when I got it but have set it to map 0 and disconnected everything to stock. I for the life of me can’t figure out why it’s running so rich, tried doing a smoke test but smoke kept coming out of the hose that runs from the inter cooler to the turbo. Only codes I’m getting is p112e and p12a4

It’s a silicone hose so I don’t suspect it’s broken, I checked the oring it was fine, is smoke normal to come out that hose? Reseating it did not help.

The DME is trying to lean out the mixture because it is too rich. You need injectors and possibly walnut blasting the intake ports.

Mark.

[zohaibrose]

The DME is trying to lean out the mixture because it is too rich. You need injectors and possibly walnut blasting the intake ports.

Mark.
Ye the intake ports were cleaned out when I had the engine out with that good ole crc intake cleaner, is there a way to possibly test or check the fuel injectors before replacing such expensive units, I have some backup ones but just don’t know how to tell ones good

[nachos23]

there should be no smoke coming out from any connection...try putting a tie strap around end and see if that helps.... If you have bad LTFT, 1st place to look is for air leaks... the fact that you found one, means fix it and retest. I had similar issues with LTFT and found a tiny leak in a coupling.... as soon as I addressed that issue the LTFT improved to -2 from -17 in a matter of 2-3mins...fix that leak and retest.


New e92 owner here, just bought this 335. It runs good once warmed up but on cold start it idles real rough and the fuel trims are at -15 at idle ��

They change to about -12.5 when I rev it up. Just cleaned the maf and map sensor but didn’t seem to do anything, has a vrsf charge pipe, and a aftermarket inter cooler and the burger motor sports cai. Had a jb4 when I got it but have set it to map 0 and disconnected everything to stock. I for the life of me can’t figure out why it’s running so rich, tried doing a smoke test but smoke kept coming out of the hose that runs from the inter cooler to the turbo. Only codes I’m getting is p112e and p12a4

It’s a silicone hose so I don’t suspect it’s broken, I checked the oring it was fine, is smoke normal to come out that hose? Reseating it did not help.