Dealer flashed ecu now cel and tcs unscannable
 

Car was idleing odd. Dealer flashed ecu with software to fix it. Didnt chsnge idle issue. Cleaned my maf sensor with maf sensor cleAner and i put new oiled airfilter on intake. Car went to shit. Sputtering stalling. Check engine light, slip indicator light. Went back to dealer. They tried to read codes and the car was a ghost. Obd Wouldnt evenrecognize the car. Didnt find anything. It has NEVER been tuned

Why couldthe dealer update ecu but not read codes? Ifeel they screwed it up

Why are you creating a duplicate thread to discuss the same issues? Also wouldn't this be a better idea in the software or engine section as opposed to the TSB section?

I have no idea what "tsb" means. Its an issue do dowith dealer. Other posts title isnt accurate to the issue

Technical Service Bulletin. Usually how they release info on recalls.

Hmmm maf cleaner... For this car I don't recommend.... Our maf is so sensitive.

Anyway, take back to dealer.


Btw, after reflash I had to run my car like 40min so codes could be read.

Ah yes i had my battery unplugged all day as well. I figure im only 15 minutes from dealer so maybetje ecu hadnt fully rebooted yet

Totaled.

?

Takes longer. I used to reset ecu when smogging.....other car.... and i always had my mechanic (smog person) pissed off that i didnt run my car long enough. Was usually about 40min of driving it. Letting it warm up while sitting didnt ever seem to do the trick.

¿

Car runs amazngly and no lights come on until about 40 minutes of driving. Then CEL comes on and car runs like poop.

Maybe take it to another dealer?

Ithink ihave a pretty good theory on what happend. Car was not tuned previously. Injen intake had maf sensor on threshhold. Once the dealer reflashed ecu to i assume recalibrate maf sensor trim for idle sputter that it threw my injen intake even further off. Hence the light coming on and it running worae. If only ONE PERSON in lowermainland could have a damn stock intake for me to test this theory

so you have an intake but no tune....

Correct "......"

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what code/cel comes up?

And a header.

Maybe stick to working on jeeps?

Can that scanner u got read fuel trims? What's your STFT right before you go into closed loop?

And a header..... Haha

Nope cant read fuel trims. Im assuming its just because of the intake. Being optimistic. Hoping i can get my hands on one sooner than two weeks. Then ill
Have some answers

or maybe you should stop driving it till you can get tuned...both a header and a intake are tuneable mods.

Does the car run/idle fine with the MAF disconnected?

Ok so update!! Got stock intake. Installed and unplugged battery overnight. Car ran great for an hour and a half. No stalls no sputters then BAM check
Engine light. My 3 other codes were wiped. The p0172 and p117 0/b. Which is what was causing my idle and stall.

Now im getting p0420 which i wasnt before!? Havent touched the header or o2s. Deleted the code. Wonder if it will come back? Any negative side effects of driving with p0420? What are my options in fixing it permanently
Other than putting stock header on. Which im not doing. Would a rear o2 spacer help!? I remember a previous member saying something of the sort
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2013 silver frs, injen intake, agency power header, hks exhaust, no kitties.