multiple misfires detected after sea foam
 

So i just bought my 08.5 gt with 54k. From reading these threads I knew that there was a carbon build up issue around these miles with the DISI MZR. so I seafoamed like others and planed on cleaning my EGR (EGR lights not on but it seemed like a good idea since ppls lights come on around 60k) now i think ill get a block off plate intstead.. Anyways so i seafoamed it, poored the whole botle threw the brake booster vacum line (the bottom one the front side of the motor.) as it was started. RPM dropped a lil low like normal but there was no complete bog out. let it sit for 20mins. stated her up reved a good amount of times, kept it at 3k and 4k for a lil then took her around the block. I ran it hard for about 4 mins and brought it home after the smoke stoped coming. the car ran jus as good as before if not better. after i parked it i notice the check engine light is on. it worrys me so i drive to the closest code reader. it says i have a p3000 or some shit (multiple misfires detected). that might not be the code but it for sure said multiple misfires.
Ive been looking around a lot to see what others say. some say that after they seafoamed this code read, they turned it the light off and that was the end of there trobles. they say it just happends with seafoam. others will say after sea foam you need to change your spark plugs witch is the leading culprit of misfires. I really dont feel any misfires though. car idles at 800-900 like always never moves, the car dosnt skip a beat when WOT. the car has always seamed a lil slugish to me. after a few days with the light on 3rd gear feels more slugish then ever. maybe i jus need new plugs but theres no real sign of that.

anyone expirence this before?

Why didn't you follow the seafoam how to?

You will get a check engine light 80% of cars that run seafoam get a check engine light.

Your car is still burning the seafoam out! Take the car out for a decent drive approximately 30 minutes, if the light doesn't go out before u get back it should be off next time you start the car. Trust me if you didn't hydrolock the motor while sucking in the fluid you haven't messed anything up. (Your supposes to have a friend Rev the motor to 2k until contents are gone so u don't hydrolock). Anyways you did it right so don't be so afraid. U could always run a few tanks of 50/50 e85 and possibly have same results.:-) good luck.

think i got a p3000 the first time i seafoamed but that was at 10k miles. you're fine.

however, recommend you change your plugs. bet they're the originals.

Why did you use the entire bottle? It says right on it 1/3!!! Your lucky you ddnt hydro lock your shyt.
Like others said run the car to finish burning that shyt out n change your plugs.

Also fyi: unless you have something to disable cels blocking the egr will give you a light.

You know we're direct injection right?

people dont know the difference between PI AND DI they think fuel injected is fuel injected

Lol ill have to read up in this.. I can hear a big facepalm around the world tho. I was speaking from experience on my last car.

Wow.

lol @ facepalm around world

I did follow the how to, on YouTube. The bottle I bought didn't have directions so I read them up. I didn't follow them step by step but I thought it'd be fine

Sounds good. Like I said though "after the clouds calmed I took it for a hard ride threw the neighborhood. Takin for several runs after, I've been daily driving it and hit 120 a couple hours ago lol. It's been 2 days and the light hasn't gone off. Also I've here of havin a friend rev it but I used a small house while poring slowly. I've here of some ppl letting the fluid stall it out at the end by poring fast. That didnt sound good so I didn't let my motor bog down to low

I used the whole bottle because I know other ppl apply other places besides the brake booster vac but I hers the gas tank and other places is risky and could break materials lose that will clog your injectors. Ppl with bigger motored cars or heavy build up say the use 2 bottles..

Never had a check engine on the Speed 3 or any other cars. Do it slower.

it takes 10 minutes to pull the plugs and check them. do it. pull tmic, unscrew coil, pull plug.

IThe first time I did mine I used the BPV & booster then I was corrected and just use the booster each time.

These guys set me straight too. Live, learn, move on

I've worked on a previous Honda and jeep but have been scares to touch the motor of my Mazda. I'm somewhat good cars. I'm sure I could do it, the possibility of messing something up is more of a scare now.. Is it really that easy to take the tmic off?

I kept my stock plugs for this very reason. Every time I seafoam I put the stockers back in and then take em out after its all burned off.

I know a CEL will be there if I get a block off plate but I've herd I could cancel it. Or is a tune (accessport) the only CEL cancel for the EGR?

Lol what the hell?

to take off the tmic loosen the worm clamps on the hot pipe (from the turbo) and cold pipe (to the throttle body), remove the recirc hose and vac hose from the bpv, take off the tmic shroud (2 10mm bolts in the front) and remove the 3 tmic nuts (12mm...1 in back, 2 in front). then pull the tmic straight off and it'll pull out of the hot and cold pipes. tmic is off, revealing the coils. coils are held in by 2 screws and a plug. then get a long extension and (I believe) a 5/8 spark plug socket and pull the plugs. reinstall in the reverse order.

the egr cel can be disabled using an accessport. but that's the only way. it's also pretty good for tuning and code reading...and monitoring. it's just plain good. you should have one, actually.

thanks, Ill have to go at it. I know accessport is a must..savin
dosnt bad plugs effect bottom end power? like i said car idles and at WOT it dosnt skip a beat but... if im bangin gears 1st and 2nd feel alright, a lil slugish but they its hard to tell cuz the turbo spools so quickly in those gears. as soon as i hit 3rd, still WOT, it dosnt feel the same it takes somewhat of long time to reach full rpms (for me 5500-5800) as soon as i hit 4th, 5th and 6th it pulls hard. 4th pulls harder then 3rd it feels like. natrually 4th will be faster but you feel more torque then you do in 3rd. witch seems odd to me. This all was noticed after seafoam. im near positive 3rd pulled harder 2 days ago. CEL light is still on. sounds like I need new plugs?
I know 1st and 2nd have tourque management and 11 psi instead of 14psi witch are 3-6 gear. correct me if im wrong!? im pretty sure the gen2 has management threw 3rd..

whoa. slow down there tiger. you got multiple misfires because that happens sometimes when seafoam is used. especially when you use 3 times the amount.. you need to get your code cleared and see if it come back on. or pull your plugs. it really is stupid easy.

all of that crap about 1st 2nd 3rd means nothing. subjective feel helps you diagnose your own car, but is almost meaningless on here. we need numbers...

easiest thing, though? check the plugs already..

Checking the plugs is probably the best thing, and if you bought the car with less than 60k she probably still has the factory originals and they'll need to be changed. Or, the previous owner put in ITV22's and by now they're fouled and need to be changed.

But the easiest thing is to have "the closest code reader" turn off the code. Whenever I have thrown a P030X code after Seafoam, it doesn't come back on if I turn it off. It wasn't clear from your OP that your friendly neighborhood code reader turned off the code when he read it for you. Most code readers can also clear the codes, and most places that read codes will offer to clear them while they're at it.

The next easiest thing to do, if the code comes back on, is to try the "spark plug defouling procedure" as specified in the factory manual. (It won't work, but it IS the next easiest thing.:wink1:) With parking brake on in neutral, hold steady 4k rpm for 2 mins, twice. The ECU will automatically drop revs (for your convenience) after 2:00, so you don't even need a stopwatch. (It scared me the first time that happened. I thought I had broken something.)

You can clear the code from the egr blockoff with the ap but it will come back on. You need to disable the code in ATR for it to stay off.

Power output is limited electronically in the first 3 gears.

buy some denso itv22s off ebay and study up on how to replace plugs while you wait for them to arrive. you're near 60k miles and i bet those plugs are the originals.

your car is fine. get the code turned off, it probably won't come back on. I bet I could pour 4 bottles of seafoam through the car without hurting anything if i did it slow enough.

i agree with karl on plugs. you likely misfired because of seafoam in your engine (duh), but it's time to do the plugs anyway. I dont' think they are causing the light, but they're likely due regardlss. get them at rock auto, cheapest place to get them with a 5% discount code (google for one).