Spark problem?
#1
Spark problem?
Hi i did buy a 2004 rx8 231hp that had bad stationary gear bearings so i did rebuild the engine with new seals and bearings and put it in the car and then trying to start it but wont start got a code for crank sensor so replace that and same thing, cleaned the trigger plate and that dident work it is like its trying to start but wont i did check for spark and it seems like it only sparks a few times? any suggestions? im lost..
#2
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What do you mean by "sparks a few times"?
Did you reset the ESS profile (20-time brake pedal press)?
Was it properly rebuilt or you only changed the bearings?
Are you sure the correct coils are connected to the right spark plugs?
Are you sure the correct fuel injectors are connected to the right connectors? this is a very common mixup when reinstalling an engine
Did you reset the ESS profile (20-time brake pedal press)?
Was it properly rebuilt or you only changed the bearings?
Are you sure the correct coils are connected to the right spark plugs?
Are you sure the correct fuel injectors are connected to the right connectors? this is a very common mixup when reinstalling an engine
#3
What do you mean by "sparks a few times"?
Did you reset the ESS profile (20-time brake pedal press)?
Was it properly rebuilt or you only changed the bearings?
Are you sure the correct coils are connected to the right spark plugs?
Are you sure the correct fuel injectors are connected to the right connectors? this is a very common mixup when reinstalling an engine
Did you reset the ESS profile (20-time brake pedal press)?
Was it properly rebuilt or you only changed the bearings?
Are you sure the correct coils are connected to the right spark plugs?
Are you sure the correct fuel injectors are connected to the right connectors? this is a very common mixup when reinstalling an engine
#5
I did measure my coils today and i got from a-b=1,6k ohm and b-c=0 and a-c=0 and i dosent really understand that because what i have read should it be from b-c some resistance or am i wrong?
#7
Yeah all do the same and i dont know why becuse i cleaned the timing plate and it has no damage to it and there is a new sensor and the plate dosent even wobble so what more can it be?
Last edited by Danne1127; 08-06-2022 at 09:47 AM.
#10
Okay yeah the gauge moved.
No its not a oem sensor but could it really be that?
I have read a bit now and it was one that had something similar and for him it was the knock sensor that was bad could it be the same here?
No its not a oem sensor but could it really be that?
I have read a bit now and it was one that had something similar and for him it was the knock sensor that was bad could it be the same here?
Last edited by Danne1127; 08-06-2022 at 01:41 PM.
#13
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And the rpm read out is nice and consistent? Does p0336 come back if you clear it?
One other thought is to clean the grounding points, battery terminals, etc. P0336 doesn't strictly mean the sensor isn't working, just that it's not staying in the expected range. So it could read good enough to get an rpm signal (+/-) but not well enough for accurate spark triggering if that makes sense. Spark needs to happen at certain ES position. RPM just needs it to do complete circles.
One other thought is to clean the grounding points, battery terminals, etc. P0336 doesn't strictly mean the sensor isn't working, just that it's not staying in the expected range. So it could read good enough to get an rpm signal (+/-) but not well enough for accurate spark triggering if that makes sense. Spark needs to happen at certain ES position. RPM just needs it to do complete circles.
#14
im gonna check the consistency of the rpm and yes the code comes back directly when i crank it and i have cleaned all the ground wiring spots but i start with checking the consistency of the rpm and then i come back
#16
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If the starter isn't spinning the engine fast enough it can trigger a shaft sensor code and cut spark.
#21
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#23
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Your probably right but they did upgrade the starter for a reason. Maybe 260 is fine but at the minimal end of the spectrum for the ess.
#24
Okay so i did check the wires to ess sensor today and it was good connection. Im gonna take of intake and check the injectors connectors that they are in right place to be 100% sure
#25
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From the video and my extensive experience listening to that sound. I believe you are spinning fast enough.
The trigger wheel, unless you drilled your own holes, can only be put on one way. Anytime you change the sensor do the brake pedal stomp 20x reset.
For fueling some idiot decided to mark the different injectors with very similar colors on tape that fades and falls off. These being hooked up wrong will certainly give you these issues. (I'm not sure if the E shaft timing code gets kicked due to the car seeing that the ""timing"" is off between the fuel and spark.) I had the same code happen to me and went through 3 sensors, all were good but my injectors were hooked up wrong.
For spark you should ensure your plugs are clean(check for gas/flooding) and make sure your coils are plugged in correctly and your plugs into the rechecked coils.
Has the engine run at all since the rebuild? Compression test the engine before going crazy replacing the rest of the car.
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One trick I have used in the past is to hold your gas pedal to the floor which cuts fuel. Try to start the car for 4-5 seconds and then release the gas pedal to try to introduce fuel while spinning. You can also try this as a quick deflood procedure holding the gas and starting for 7s.....wait....repeat. Then trying to start. Note that this does not clear out the fuel/oil that could stay on the spark plugs and foul them.
The trigger wheel, unless you drilled your own holes, can only be put on one way. Anytime you change the sensor do the brake pedal stomp 20x reset.
For fueling some idiot decided to mark the different injectors with very similar colors on tape that fades and falls off. These being hooked up wrong will certainly give you these issues. (I'm not sure if the E shaft timing code gets kicked due to the car seeing that the ""timing"" is off between the fuel and spark.) I had the same code happen to me and went through 3 sensors, all were good but my injectors were hooked up wrong.
For spark you should ensure your plugs are clean(check for gas/flooding) and make sure your coils are plugged in correctly and your plugs into the rechecked coils.
Has the engine run at all since the rebuild? Compression test the engine before going crazy replacing the rest of the car.
-------------
One trick I have used in the past is to hold your gas pedal to the floor which cuts fuel. Try to start the car for 4-5 seconds and then release the gas pedal to try to introduce fuel while spinning. You can also try this as a quick deflood procedure holding the gas and starting for 7s.....wait....repeat. Then trying to start. Note that this does not clear out the fuel/oil that could stay on the spark plugs and foul them.