answersLogoWhite

0


Best Answer
Copy

Check dark blue/white wire from knock sensor to ecm(electronic computer module)

if it is grounded or shorted to ground then code 43(electronic spark control circuit) will be set

Warm car to normal temperature.shut off engine.disconnect knock sensor.turn ignition switch to on position or run position(engine is not running)

check voltage between harness and ground(should be between 4 to 6 volts)

yes-means bad connector or bad sensor

over 6 volts-shorted to voltage or bad ecm

under 4 volts-shorted to ground or bad ecm

User Avatar

Wiki User

โˆ™ 2011-09-13 12:29:32
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0
User Avatar

Add your answer:

Earn +5 pts
Q: On a 1988 Pontiac Bonneville will a bad knock sensor give a code 43 and cause the engine to run rough stall when you slow down?
Write your answer...
Submit

Related Questions

What would cause a 2001 Pontiac Grand Am's engine temperature gauge to not work?

Coolant Temperature Sensor


What are the symptoms of a bad throttle position sensor on a Pontiac Bonneville 1994?

a bad throttle position sensor will cause: transmission shift issues, bucking, jerking, idle surging, engine cuts off, hesitation on take off, surge while cruising down highway. all or part of these symptoms will indicate a bad sensor. not all the time will check engine light be on!! sometime these symptoms will not set a problem code.


What would cause a 96 Pontiac Bonneville to stall while you are driving?

crankshaft position censor


What can cause irregular firing Pontiac 3.8 engine?

I've had a problem with my O2 sensor and air filter causing my 1998 firebird to misfire.


What would cause a humming or howling noise coming from the engine compartment of a 1989 Pontiac Bonneville on hard acceleration?

sounds like a motor mount is broken or a transmition mount. have those checked.


Why would a 1992 Pontiac Bonneville SSEi have single knock sound from the back bottom of the motor after the engine rev comes back to idle?

I read that bad motor mounts can cause this knocking sound


What do you do if the engine clicks but does not start when you turn the key on your 1995 Pontiac Bonneville?

the most likely cause is a flat battery and or dirty battery terminals check all electrical connections from battery to starter (hope this helps)


Your 2002 Bonneville runs steady at 200 degrees is that normal?

this is normal for this engine, in fact anything short will trip a check engine light. the cause will be a low coolant condition, a thermostat stuck in the open position or a bad coolant sensor. this is normal for this engine, in fact anything short will trip a check engine light. the cause will be a low coolant condition, a thermostat stuck in the open position or a bad coolant sensor.


Are there sensors that would cause a 1997 dodge stratus to not start?

Yes, just about any sensor on the engine could cause a no start.Yes, just about any sensor on the engine could cause a no start.


Can a bad crankshaft sensor cause a misfire?

An intermittent crankshaft sensor will not let the engine fire the correct times. This can definitely cause a misfire for the engine.


How do you install a thermostat in a 1995 Pontiac Bonneville?

i just farted,how can i stop farting cause it smells like egg salad sometimes


What would cause the temperature gauge not to work on your 1998 Pontiac Sunfire?

temperature gauge not working can be caused by a bad temp sensor in engine, a bad gauge in dash, or a bad fuse


Can unplugged mas cause check engine light?

Yes, an unplugged sensor can cause a check engine light.


Symptoms of bad camshaft position sensor?

A bad crankshaft position sensor on your Chrysler 300 will cause the engine to run very rough or not run at all. The malfunctioning sensor can cause damage to your engine, if not repaired.


What would cause a knocking noise when you ride over rough roads in a 1995 Pontiac Bonneville?

There are more possibilities than the mind can imagine.Take it to a repair shop and have them inspect the underside. It could be the engine mounts, they might need replacing, check them first.


What could cause the cooling fan to run constantly on a 1996 Pontiac sunfire GT with a 2.4 engine?

If the AC is on constantly, the fan will be on constantly. If that's not it, it mught be the fan relay or the temperature sensor.


Would a knock sensor cause the engine to run rich?

No it will not.


Will a bad oxygen sensor cause an engine to miss?

It sure can.


Why do the anti-lock brakes on Pontiac sunfire lock up?

There are a couple of things that can cause your Pontiac antilock brakes to lock up. The most common cause is a malfunctioning ABS sensor.


I have no spark on my 1999 Pontiac Montana could you tell me what could be the cause?

There is no distributor on a 99, so there are a few sensors that can cause this. If you've had your intake replaced, or it is leaking, it could be the Cam sensor, which is located on the top of the engine, under the power steering pump, there is also a crank sensor (Is your tachometer working?) and lastly there is the ignition module which is located under the coil packs on the back of the engine.


What would cause sludge build up in the radiator of a 1992 Pontiac Bonneville SSEi?

degradation of the coolant. flush the system and refill it, and all should be well.


Does the air flow sensor cause your car to not start?

depends if it is bad it can but are u actually talking about the o2 senser or the mass air flow sensor on the intake.... cause it can be a bunch of things but the air mass flow sense is easy to replace i have to buy one and the tools to replace it and the sensor is 45 dollars for my 97 Pontiac Bonneville se v6 3.8l hopefully that fixes the probem with it not wanting to start ...i got fuel pressure it just isnt fireing


Will a bad heat sensor cause your Chevy s10 blazer not to start?

A bad engine temp sensor can do that.


Can a bad 02 sensor cause your engine to make a noise?

Not likely. A bad O2 sensor would illuminate the check engine light and the engine performance would suffer.


What would cause your 2001 Pontiac grand am gt to under cool?

water temp sensor wire grounding out could cause this problem.