Pulled the negative battery cable and then when we restarted the vehicle the check engine light remains on

ok car starts but going down the road it stutters and engine stops again starts go down again stops it does that till i get home i just parked it help///

hesitate right off idle. once get pass idle then takes off and goes.i got a new innova 3120 obd 2 &1 scanner. like i said no check engine light on. it come up code po 172 it says rich bank 1 or 172 is simaler to 175 both are v8 engines. this is a 4 banger!

We recently replaced the battery and haven't had any other problems whatsoever. I'm wondering if it's just a bad connection (battery) or maybe the wiring???

The fuse that controls the instrument panal light,license plate lights, driving lights, is not blown. And i am trying to figure out what it could be.

to do front and back

its a 1983 toyota 4x4 and it originally came with federal and canada emissions. It failed smog and I do not think parts are available for this car.

_clicking noise from dash board
-won't idle right
-have to use accelorater to start and keep foot there even when braking or it dies
- Draining battery while off

I changed the 2 rear air springs and solenoids on an Expedition 4x2. What else should I check or replace to stop the system from leaking air? The air springs inflate, but within minutes, deflate.

as long as the car on it stays on

When driving down road the van will high rpm and lose speed it only happens every now and then and normally wont last long sometimes a mile other times 10 miles

Car showed multiple display messages and speedometer wasn't working. Few days later it appeared fine. (no display probs). Dealership says communication problem and needs new ESP module.

have took out the senser & cleaned still not working correctly

when I take the keys out of the starter the immobolizer light comes on flashing is this normal It turns itself off when I starts the car.

I need your advice on how to solve my problem re: engine vibration when engage to drive mode and when a/c is on at idle. I have replaced all (4) motor mounts,had the throttle body cleaned and poured fuel injector cleaner, regular oil change. Yet, still having this vibration problem. So far, i have no problem when it comes to engine accelaration and power.

This all started when my car hit 106,000 miles; I have noticed that the engine sound becomes louder and the idle is rough with the vibrations. When engine is engage and a/c is ON the rpm is very stable at its required level. This car use to be very quiet and stable.