AlterZgo

No but my car was 8 mos old and had less than 5k miles on it so it drove like new. If your car is several years old and has over 10k miles it wouldn’t hurt to have it checked out but find a reputable mechanic who tunes Porsches and let them know what you intend to do. You want to make sure the car has no leaks in the charge pipes, intercoolers, turbos, exhaust, cooling system, etc. and spark plugs are healthy. If you haven’t changed spark plugs get a new set and gap them down to the recommended amount. If your tires and brakes are worn out, take care of those issues b/c adding 100 hp with worn tires and brakes is not a good idea. Change the oil while you’re at it.

AlterZgo

No need to get upset about this. Yes I did. Apparently you didn’t read it very closely b/c OP actually said he had some slight stutter or misfires on the stock turbos that he could live with. But yeah, I read the whole thread. I find it odd that you would completely discount M Engineering’s explanation when they have tuned thousands of cars without issue and have dealt with and solved this issue for other customers who replaced their injectors.

Just sharing some info and pointing out misconceptions. For example, a car running fast does not mean it’s tuned properly. The leaner you run the A/F ratios the more power it will make but the greater the chance of detonation and blowing up the motor. I’m making no judgement about any tune. Just stating a basic fact about tuning and something that I think people should be aware of if they want to tune their cars.

dmia

Should have just refund the customer money. Having this type of bad publicity is not worth it to any business. I’m very hesitant to add a tune now. Might just get the M Coder for the exhaust mods. I’m hearing some people are starting to have problems w the PSE valve controller routes.

BarryC

Ok here’s my last post on this topic.

I was told by the dealer the TSB does not apply to my car and it did not show the injector fault addressed by the TSB.

On previous cars, I’ve used Cobb, Softronic and APR without issues.

I’ve been on this board for 20 years and my posts show I’ve owned and modified most of my cars without issues. Basically I’m experienced in this effort and can tell a good vendor from a bad one.

Scott at Softronic has been way more forthcoming, better customer support and more thorough than MEng.

Caveat emptor.

Fullyield

I think you might be confusing spark plugs and fuel injectors. Spark plugs a doable DIY project as long as you have patience with two of them that are very hard to access because of the turbos. No programming necessary except maybe regapping them if running a tune. But I would not recommend replacing fuel injectors DIY for several reasons. The entire intake manifold must be removed. The high pressure fuel lines must be disconnected and reconnected. If you get this wrong, you are spraying 93 octane all over your you, your car and engine at 200psi. Hope you are not a smoker or nothing is sparking. Then the new piezo injectors need a new wiring harness and they must be programmed with a PIWIS. I am a big DIY guy but I would not replace my injectors…..hopefully have the dealer do it under warranty. If your car is under warranty and you get the P020X00 fault, take the TSB and drive immediately to the dealer.

M3Inline6

My bad. I meant to link the fuel injector info I found. You make a good point about the fuel under pressure though.

Jimmy-D

You think!!!

division

There's a thread about a 2020 who needs injectors replaced and his dealer quoted $5k for it.

C21ban

Exactly!

If that had been the case, than OP may have come out and posted that although the tune didn’t work out in his particular case, the companies involved were stand up folks and refunded his $$. The costs would have been minimal in the overall scheme of things.

Icegrill

Are you referring to the cargraphic controller?

freesole

Mine is only a few months old as well. Still in break in period so I'm not tuning just yet but was planning for the late summer. Getting a little down low grumble and rattle that sounds like the new engine mount issue being referenced in this forum so that leaves me wondering if I should get it checked out before tuning.

dg108

ME offers an option for contolling the exhaust and some other options like cold start without actually tuning the car. APR also offers an exhaust only tune with their Ultralink, just different options.

jlegelis

My hypothesis: The OP has marginal or failing injectors, and the more aggressive ME 'high lambda' map is merely exacerbating that condition causing misfires. If I were a gambling man I'd bet the injectors may begin to 'act up' over time as they age, and even the Softronic tune might not be safe. YMMV.

Schwarz992C4S

Exactly!

adrianp89

Why would he get a refund when he ran the tune for several months and didn't mention any issues to them until doing the turbos? You expect them to have a Walmart return policy?