Hey guys any help. My car just stalled and doesnt start. if i unplug the battery it does start then stall again. i can hear some sound under the intake manifold. I was able to drive but kept stalling.

 

Maybe this thread can help..

https://www.clublexus.com/forums/is-...ode-p1235.html

 

I dont know the location of CONNECTION AT DIRECT FUEL INJECTION DRIVER.
He didnt have P0200, P0204.

 

sounds like your direct injection fuel pump isn't operating normally?

 

Hmmm....injector circuit malfunction? What i would do is look for cylinder 4 and find the injector. Trace it's wiring. Could be a loose plug, a short in the wire or your injector may need to be replaced.

 

I doubt its the injector, the car would still run but like crap.

Leading up to this, were there any issues that happened that you recall? Any weird idle, rough starts, anything at all you can mention?

 

Did you by chance replace your waterpump or do any work there? Check the injector driver ecu box at the front of the engine- did one of the 4 connectors work loose or similar?

 

If you are handy with a wrench and DIY, I'd recommend moving the #4 DI to another cylinder and see if the CEL code follows that DI or statys with that cylinder. It'll help narrow down the root of the problem.

GL...I HATE electrical issues!

 

thanks guys. well i dropped my car at dealership. I just got it like 20 days ago. I switched from IS250 to this one. so i will post the update.

 

Keep us informed. I'm curious to see what the problem is

 

Here is the result.

 

^Glad it was a simple fix!