Misfire all cylinders - Rich no CEL

[Celigts]

Originally Posted by AussieBRZ

Looked at new logs seems same as before


Negitive fuel trims, noticed you have aftermarket intake, the maf mqy nor be scaled for this intake


Manifold pressure still seems high for idle normally id expect arround 10 psi of vaccuum so at atmospheric of 14 psi id expect idle manifold pressure to be round 4-6 psi or so yours is 8 ps so possible intake side vaccuum leak


Is your tune using speed density ?


what is manifold psi with ignition on but engine off should be close tovatmospherix about 14 psi


if its an NA car on petrol with stock injectors and map sensor load a stock tune on car do you still get misfires ?

Stock tune I still got misfires.

Tuner attempted to help fix the issue by making idle 900 RPM and turning off the CELs for the header since it’s PTUNING without cats.

Other than that it’s basically a stock tune.

It’s 91 NA

[Celigts]

Originally Posted by RZNT4R

Mine idles below 5 psi, but his not only has low intake vac, it's also idling too high.

That's a TRD intake, it's fine with stock tune, that's what I've got in mine.

It’s idling high because tuner set it to 900 RPM to help with the issues. I could revert to stock tune but it’s same results with lower idle…still misfires.

[Celigts]

New log after I installed OEM headers
Car runs LEAN at idle STFT +20%
and RICH LTFT.

Could be RE-learning fuel trims I suppose?

��

Logs updated in original post also.

https://datazap.me/u/celigts/clean-m...?log=0&data=19

[Celigts]

Okay so giant horrible news.

A leakdown/compression test was performed. Discovered that it’s leaking in cylinder 3 causing misfires.
Compression test failed in cylinder 2 and 3.

Engine is apart now at Toyota. Not sure what the cause is but the issue is cylinder 3 is not sealing when it’s at the top of its motion and it’s leaking fluid is what I’m told.

Car has 131k miles on it and along with some other maintenance related things (timing chain:tensioner:guides) the car needs a new block I’m told.

Any chance I can get Toyota to fork up some of the bill? Am I SOL?

Looking like $6500 in repairs on a motor that runs and seemingly runs fine after idle. Able to drive it for seemingly years as I’ve been trying to track down my issue for these few years.

Any options? Suggestions?

Thanks

[RZNT4R]

I mean... new block?

Without knowing the actual failure, it seems kind of harsh, the only way I'd see that as a valid solution is if the "leaking fluid" is coming from a cracked cylinder bore (but this isn't an ecoboost), or if the bores were way scuffed, but in that case it would have been burning oil like a furnace. You mention it running fine so...

Then again, maybe it's a dealer thing and they just don't do base engine rebuilds internally and don't want to outsource, which would be a valid concern from a corporate and warranty stance: Not worth it for the cost and brand image tarnish if an outsourced engine goes bad.

Since the car is that old, any reason in particular to be attached to the dealer experience? This feels like a situation that could potentially be approached more delicately that throwing a block at it by a local subaru specialist. Consulting your local community for recommendations is probably a good bet, the best shops are usually little known, out of the way and have happy customers.

[blsfrs]

Did the dealer say "block" or "short block"? If they are planning on putting your internals in a new block, run away very fast.

[Celigts]

Originally Posted by blsfrs

Did the dealer say "block" or "short block"? If they are planning on putting your internals in a new block, run away very fast.

New short block sir 😂

Was debating either oem block for $1880 or IAG stage 2 standard compression for $4500.

Think I’m going stock…

[Celigts]

Originally Posted by RZNT4R

I mean... new block?

Without knowing the actual failure, it seems kind of harsh, the only way I'd see that as a valid solution is if the "leaking fluid" is coming from a cracked cylinder bore (but this isn't an ecoboost), or if the bores were way scuffed, but in that case it would have been burning oil like a furnace. You mention it running fine so...

Then again, maybe it's a dealer thing and they just don't do base engine rebuilds internally and don't want to outsource, which would be a valid concern from a corporate and warranty stance: Not worth it for the cost and brand image tarnish if an outsourced engine goes bad.

Since the car is that old, any reason in particular to be attached to the dealer experience? This feels like a situation that could potentially be approached more delicately that throwing a block at it by a local subaru specialist. Consulting your local community for recommendations is probably a good bet, the best shops are usually little known, out of the way and have happy customers.

Great questions.

I get dealer cost on parts and employee pricing on labor.

This should cost anyone else ~10k.

I’m paying $6500 including timing chain:tensioners:sprockets:Coilpacks:sparks:coolan t hoses.

[blsfrs]

Originally Posted by Celigts

Great questions.

I get dealer cost on parts and employee pricing on labor.

This should cost anyone else ~10k.

I’m paying $6500 including timing chain:tensioners:sprockets:Coilpacks:sparks:coolan t hoses.

Make sure they are very, extra, super-duper careful with the sealant on the front cover.

[Celigts]

Originally Posted by blsfrs

Make sure they are very, extra, super-duper careful with the sealant on the front cover.

Mine already leaks and has leaked for YEARS. If the engine blows I get a new engine mess it up I say! 😂 potentially a new car with my sales ability. We’ll see. 😂

[blsfrs]

Originally Posted by Celigts

Mine already leaks and has leaked for YEARS. If the engine blows I get a new engine mess it up I say! �� potentially a new car with my sales ability. We’ll see. ��

It's not the leaks that you should be worried about. Too much sealant can break off and get into the oil pick up... engine goes boom. This happened with some early 2013's that had the valve spring recall done. Some folks speculated that part of the problem was Toyota techs workng on Subaru engines.

[Celigts]

Originally Posted by blsfrs

It's not the leaks that you should be worried about. Too much sealant can break off and get into the oil pick up... engine goes boom. This happened with some early 2013's that had the valve spring recall done. Some folks speculated that part of the problem was Toyota techs workng on Subaru engines.

Oh I’m well aware. If they mess up and my engine blows I get a new one anyways. Could care less at this point. Brand new car potentially.