13.5 to 15.5 volts with the engine idling.
It can, but you should trust the computer diagnostics in a situation like that.
Cooling fan may not be working as it should. If it is not coming on either the fan is defective, fuse is blown, or the thermal sensor is bad. If it is running and the engine is still overheating the radiator may be partially clogged.
There are various reasons why your car would almost stall when idling. In most cases, this might be an indication of the engine lacking power or capacity due to the failure of the pistons. You should contact a mechanic to diagnose the problem.
If it doesn't have the daylight sensor on the dash, you should be able to turn the DRLs off by applying the emergency brakes.
If it is in the center of the dash near the windshield it should be a headlight sensor for day time running lights
A low oil pressure reading when idling for a 1986 Fiero is normal. As long as the oil pressure goes back to normal when the car is being driven, there should be no problem. If it is not, then the oil pressure sensor or the oil sending unit should be looked at.
Check voltage between pins 1 and 4 with the key on and engine not running. You should have 4 to 5 volts. With then engine idling, it should drop to 1.5 to 2.1 volts. Test PCM terminal 36 for same results. If different, check wiring/connectors. Test for MAP sensor ground at terminal 1 and PCM terminal 43 Test supply voltage at sensor terminals 3 and 1. It should be 4.5 to 5.5 volts and the same at PCM terminal 61 If all test good, MAP sensor is bad, if not, fix wiring harness.
A bad throttle sensor can cause engine jerking and rough running. A test of the computer codes should show if there seems to be a problem with the sensor.
It is important to maintain all car parts for smooth riding. A bad O2 sensor can cause rough idling, bad acceleration, poor fuel efficiency, and a warning light should appear on the dash,.
Look on the back on the transfer case. There should be one wire running from it. That's your speed sensor. -- Blake.
no no no my crank sensor when out on my truck ar 95k now i have 125k and she is still running good
As long as your car engine is running, it should be OK. An exhausted battery will only become a problem when you try to start the car.
no, it only runs when the heat sensor trips
The fan connects to a temperature sensor, unless it's been bypassed. This sensor should be checked first.
With key on engine not running pressure should be 9 to 13 psi Engine at idle pressure should decrease by 3 to 10 psi on a throttle body. On a multi port injection key on engine not running pressure should be 41 to 47 psi. Engine running at idle pressure should decrease 3 to 10 psi. Central multiport fuel injection key on not running should be 58 to 64 psi. Engine running at idle pressure should decrease 3 to 10 psi. Central sequential electronic fuel injection key on not running pressure should be 55 to 61 psi. Engine running at idle pressure should decrease 3 to 10 psi.
look at where the headers come off the engine. follow this and there should be a rod like projection sticking out with wires running down from it. that is your O2 sensor.
engine cooling fan should not do this - bad temp sensor likely
It should be some where on your intake manifold with one or two wires running to it.
The engine would be running poorly and the check engine light should be illuminated with related codes.
They should use what ever toilet their body was made for!
The engine should be hot and idling in park.
check the oxygen sensors, mine was "running rich" also but it turns out the problem was a bad upstream o2 sensor. The other thing could the throttle position sensor, because the engine is throttle body injected, the sensor could be dirty and sending the computer a bad reading.
look towards the top of the oil pan. it should be almost straight up from the the plug.
check your mass air flow sensor . tap on it GENTLY . should start