My z33 shuts off when I slow down

Updated: 09 Dec 2024

I just got my car back from the shop Thursday night and, it seemed fine but the next day everytime I come to a light or stop sign. it wants to shut off and, it seems I have to press on the gas a bit to keep it from turning off before coming to complete stop. can anybody help find out the problem? My friend told me it could be the maf or iac.

Comments

What repairs did you have done?

Had to replace the engine but everytime it was an issue that it turned off so its been in there for 3 months

Scan it for any codes?

The check engine light would probably turn on if it was a code

True thanks what I’m gonna do right now is clean the maf sensor and see if it could be that… i hope

Yeah at this moment

Warning this is wordy Is it slow to start when cranking and dash lights appear dimmer than usual while doing so? Eliminate the easier things first- (if you or your shop can) fully charge the battery, do a load test, if it falls drastically while loading or drops below 10 volts change the battery. Also check the voltage of the alternator with engine running, lights on & a/c on, if it charges at or around 14 volts then it’s good, if it charges i.e. at 11 volts (weak) and/or well below you will need a new alternator. In your original post your symptom is feathering the gas pedal to keep it from dying while stopped, “typically” that means the alternator is going dead bc it is not charging the battery as the engine runs, therefore the car is trying to run solely off of the battery until it dies.

It turns on fine but when i do turn it on after it shuts off it kinda stutters a bit but no dimness & i just pulled out the maf and the tube part seems broken but the senor seems good

Could be throttle positioning sensors, when they go bad the can cause the car to stall out at stops, is your car a manual? I had to replace Mine it was about 180$

Yeah its a stick & is it 180 just for the parts?

I had this problem a while back as well. Occasional rough idle and intermittent stalling at lights. It ended up being my camshaft position sensor. Not to hard to replace but it was about 60 bucks from autozone.