Coil pack very hot

iamcj

Member
:
Mazda Protege 5
Coil pack very HOT , rough idle,Struggle to move off, Loosing power

Do you guys think i need a new computer ?

If yes where can i source one ?

Current model computer FSAM -18 881A
 

Attachments

  • IMG-20160404-WA0024.webp
    IMG-20160404-WA0024.webp
    340.5 KB · Views: 207
  • IMG-20160404-WA0022.webp
    IMG-20160404-WA0022.webp
    563.7 KB · Views: 203
How long has it been since you replaced your spark plugs and wires? If its been a while, I'd change them before considering the ECU. Its very rare for the ECU to be bad so I'd consider that my final option.
 
Haven't got a cel but I haven't gotten a road trip or more than 3lbs boost out of my msp either so we shall see
 
Haven't got a cel but I haven't gotten a road trip or more than 3lbs boost out of my msp either so we shall see

Second what gillela said but given that I've owned both cars, I think I can help you here. It sounds like you need another wastegate actuator as yours maybe stuck open. This would explain why you can't go past 3 lbs boost as its creating a large boost leak. The best way to tell is by removing the vacuum hose leading to the actuator and (with it plugged into the actuator) blow into it. If you can blow into it without any resistance, you've got a bad actuator.
 
Did you open up your ECU? The problem you're having is really common and it's never been the ECU on this car. If you're dead set on getting one, post in for sale. You can also check out the protege groups on Facebook. They're very active.

Side note. What is the model year and trim of your car? I don't recognize that model number and your ECU looks different from my 02 p5 auto ECU and my manual ECU.


Sent from my iPhone using Tapatalk
 
Yes i did open the ECU and they're saying its the C339G IC Blow.

I'm using Mazda 2002 Sport20
FS9 on engine block
Right hand drive
BJFW


What do you suggest i do before I look into getting a new computer
 
It's also miss-firin

When i press down on the gas it take a while before it pick up

What ive done so far is clean injector change plug wire , change gas fliter
 
Every time I've had a misfiring it's been the coil packs or the spark plug wires. There are two ignition coil packs and two spark plug wires. I would replace all of those things first. Idk if the Sport20 has an OBD-II port, but read your manual to find out. If it does, go get a code reader from Autozone and see if you have any codes. Who said you blew the C339G integrated circuit on the ECU? Is it obviously melted? It should be a little black box with "C339G" printed on it.
 
The mechanic also mention that he's getting a feed back current from the coil connection when he attach a tester
 
Feedback can be caused by ignition coil problems. This sources says it CAN damage the ECU (PCM), but not that it will. I've never seen that on a protege, but then again you have a sport20. I really think you need to rule out ignition coils and spark plug wires before you replace the ECU.

Use google to find the manual for your car or just look for the OBD-2 port. Use google to find out what it looks like.

http://www.aa1car.com/library/ignition_coils.htm
 

New Threads and Articles

Back