yishin

Hi i have 2014 lexus isf with 2500miles
With sikky header +joe z exhaust
Joe z inatke tube sikky rear sway bar as mod
Today my car wont start its gets the crank but
Not start the actual engine
Ithough it may be the battery try to jump start the car
Not working
So i sit in the car check the key fob it gives green nothing wrong
So i tried to start the car try like effing 20 time or more
Then this car starts... I gave a gas while in parking... Nothing wrong so i turn off the engine and retry
But again car does not start
Then i again try like more than 10 timrs while give some break time betweene the multiple try to wtart the car
Then it starts again
So while car is on i called lexus to pick up my car and drop to dealer
Now day later dealer telling me they can not duplicate the issue there is no problem with the car
They gave me an option as 1. Leave car at dealer
So they can keep the car and try to duplicate by go turn on my car and turn off repeating ...2. I take the car and monitor myself and when it break down the. Dont start the car just bring the car in
What do u guys think? What should i do whats the problem plz help

2012ISF

You bought a 2014 with Sikky headers already on it from the dealer?
Interesting. Not starting would pee me off, especially with 2500 miles.

yishin

No i bought new and as soon as i hit about 700 miles i mod the hell out of it with all the cf kit all around

jkeifer3

I personally wouldn't want to keep the car and have it strand me. I'd let the dealer keep it for a while and let them diagnose it. Also, check the odometer reading before and after to make sure they didn't drive to California or something. Good luck!

kauaian

iTrader: (18)

I would say your battery is fine if you can crank it 20 times and still start the car, well eventually. If your battery is fine it could be a defective starter? Did you do any modifications that required you to unplug anything? If so maybe one of the plugs isn't seated all the way?

I would drop it off at Lexus and let them figure it out being it is under warranty. Please report back when you figure out the problem.

Good luck

NYKnick101

I had a similar issue with a different car, how long ago did you install the headers? Was the O2 sensor on the header re installed correctly? (if there is one) Sometimes the metal from aftermarket headers can fry the wires. Sometimes you have to extend the wires on them. Bad O2 sensor can give the car the wrong A/F ratio which can cause the car not to start

Mrd916

Wouldn't be surprised if ur dealer denies warranty fix cause of ur headers unless they did the installation.

mikersoft

iTrader: (1)

They could, but only if the installation of aftermarket parts caused the problem (i.e. knocked a connector loose or damaged a part).

-Mike

yardie876

Have a remote start system installed by any chance?

jlam86

iTrader: (1)

I would poke around and try to make sure all the sensors and harnesses are fully clipped in especially in the areas where your mods were located.

ISF001

It is most likely the result of your after market installation--in which case the repair is most likely on you.

lobuxracer

iTrader: (2)

This. Take it to whomever installed the headers. Odds are they have a wire too close to something hot.

4everkidd

iTrader: (2)

Hence why i am going to tackle the install myself...

yishin

No remote starter

yishin

But with joe z exhaust n sikky header install
Which wire should i check for and how do u tell the o2 sensor is install correct?