I seriously need some help with my CA18dET

[kota2240]

Here is my problem and only problem:::
After i drive my car for 5 min, my car dies but does not stall. The revs will not go up and i hear HEAVY gargaling coming from the exhaust. The car does not shut off, I just cant drive because the power disappears, no throttle response, even with the pedal down the car does not move, i just hear rumbleing from the exhaust. BEFORE the 5min my car drives GREAT, no hesitation nothing, and it can idle all day long with no problem.

NO ecu codes
My timing is 15deg
Changed fuel filter
TPS is at .5 and 5V
Idle is great at 750
I looked for vacuum and boost leaks for atleast 4 hours today using some carb and choke cleaner.
My Vac is at 20hg
Every injector i pull i notice a big difference in idle, so i guess they all work, same goes with the coilpacks
Fuel Pressure is at 32 on idle and 40 at WOT
Oil pressure is at 20 once the car warms up

I do not have time for this anymore since i work 40hours per week and i have been driving someone elses car for the last three months.

PLEASE HELP

[kota2240]

no ideas huh

[sliEighty]

did you check your MAF? did you get water on your eletrical parts of the motor

[kota2240]

I changed my MAF with a friends and still no go, no water on my electrical parts

[project_s13]

ironicly.... this si exactly what im having trouble with. im a tech and do work on the side on jdm cars etc. my buddy brings me this originally for an exhaust leak.... horribly.... so i get it all down to find manifold to turbo gasket is blown. it scheduelde for rebuild block right away here anyway so no biggy.

but anyway i get it all back together and he get half way home and he gets same thing around 3-4 grand after driving for couple minutes no trottle response engine misfires and sputters horribly. then if he manages to bring his rpm up and boost goes past 0 it will run ok until you let off. trhen it sputters and wants to be a bitch again.

i searched and went throught what i touched and moved and even unded the downpipe repair i did. maid no difference. upon further searching found the O2 sensor wiring was broken. so managed to salvage the wiring and repair it. ran better than before for first five minutes again then started running like shit and smelt like burning and clearly something has started leaking since it's smoking from the engine bay now. but it baffled me from where. also he gets an engine code that comes on and off but never locks in. which pisses me right off. but i have a feeling its a misfire, or 02 sensor code.

but ive been thinking and only things i can figure that would cause this would be 1. a faulty coolant temp sensor, they always cause wierd issues like this... on off CEL etc. 2. bad ECM something is not right with it anymore. 3. fouled plugs 4. bad O2 sensor reading happeneing from sensor or bad wire.

i will keep trying to diagnose tomorow. and see what i can find

[project_s13]

im aware this is a two year old thread.

[kota2240]

just updating my post from long ago hahah. It was a bad O2 sensor. This should help anyone having similar issues

[di-devol]

I hope it didn't take 5+ years to figure out lol.

[rhd_S13Brett]

lol dangg long time

[kota2240]

Originally Posted by di-devol

I hope it didn't take 5+ years to figure out lol.

hahaha nope. i was just looking back at all my old posts. just got another 240sx after a few years.