Engine Dies at Idle and slight power loss at low RPMs when hot
#1
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Engine Dies at Idle and slight power loss at low RPMs when hot
My RX8 has been great since I bought it in 2005 but I've recently been having some strange issues.
Symptoms: The car starts and drives fine until it heats up. Then, it will randomly have a slight power loss when accelerating between 3k-4k RPMs. It's almost like someone cut the power for a split second and then it comes back. Also, it will randomly die at idle when sitting in traffic. I have a 40 minute commute to work and each symptom happens about once or twice per commute but otherwise the car drives fine. Recently, this also started causing a flashing CEL which I believe indicates a Misfire.
Fixes: I've gone through the misfire thread and done:
- Have BHR coils that are about 30K miles old so assume those are fine
- Replaced Iridium spark plugs
- Cleaned MAF
- Cleaned ESS and reset NVRAM
- Have BHR cat-less midpipe so don't think it's cat related as I don't have one. Also removed the Secondary Air pump since I don't have a CAT.
- Had a compression test 10K miles ago and dealership said the numbers would really good
Car: 2005 Mazda RX-8, 70k miles, manual transmission, BHR coils, BHR cat-less midpipe, Racing Beat Intake with Duct.
Any ideas where to look next or what to test? I ordered a timing light to test the coils but I think it's something else since it only happens when the car is hot.
Symptoms: The car starts and drives fine until it heats up. Then, it will randomly have a slight power loss when accelerating between 3k-4k RPMs. It's almost like someone cut the power for a split second and then it comes back. Also, it will randomly die at idle when sitting in traffic. I have a 40 minute commute to work and each symptom happens about once or twice per commute but otherwise the car drives fine. Recently, this also started causing a flashing CEL which I believe indicates a Misfire.
Fixes: I've gone through the misfire thread and done:
- Have BHR coils that are about 30K miles old so assume those are fine
- Replaced Iridium spark plugs
- Cleaned MAF
- Cleaned ESS and reset NVRAM
- Have BHR cat-less midpipe so don't think it's cat related as I don't have one. Also removed the Secondary Air pump since I don't have a CAT.
- Had a compression test 10K miles ago and dealership said the numbers would really good
Car: 2005 Mazda RX-8, 70k miles, manual transmission, BHR coils, BHR cat-less midpipe, Racing Beat Intake with Duct.
Any ideas where to look next or what to test? I ordered a timing light to test the coils but I think it's something else since it only happens when the car is hot.
#2
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Sounds like coils to me. Sounds very similar to the peoblem I had a couple years ago. It would struggle to get going and then just die at a stop light or sign.
i know you have BHR coils thats odd that they would go so early but thats what it sounds like to me. A flashing cel means misfire get the code reād that should tell you where to look.
i know you have BHR coils thats odd that they would go so early but thats what it sounds like to me. A flashing cel means misfire get the code reād that should tell you where to look.
#3
///// Upscale Zoom-Zoom
What codes come up for the CEL? It could be your SSV is stuck open.