Ok, My 8 has been acting weird lately. It misfires (hot start only). So i took it to T&R Racing. (i don't hear good things about them on this site) Well he told me..

1. He did a compression test with a regular compression tester and he said the engine was fine.

2. My CAT is clogged. Thats why i was getting hot start problems. (continues to recommend i get one from the dealer) which is not happening.

3. Decarb it

3. And i should get my plugs, wires and coils replaces.

Now heres the swing to it. i took it to Garden City Mazda to get a compression test done on it. and i was told that they don't have the original guy doing it anymore its a new guy. and he told me my engine was gone and gave me readings so low that my car should not be able to even start cold. but it does. So I'm a little concerned in wondering who is lieing and who isn't. Mazda did tell me my coils where worn and i should get that done also. Anyone know anyone trust worthy Shop i can take my 8 to in New york

 

where in ny? im not far from the border in pa and may be able to help. how many miles on your ignition? coils plugs and wires are the most common cause of misfires. failing ignition leads to clogged cat which leads to failed engine.

what year is your 8? mileage? maintence history?

 

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What was the compression test results from the dealer? If you paid for a test, you deserve all the information from it

 

Year: 2005
Milage: 110k
Some maintenance history:

- First engine died at 40k
- Coils, Plugs, Wires have i'de say of 30-50k miles on them ( i was gone at bootcamp, Wife was left in charge of it.. Worst decision made i know)


I live in Queens ,NY

 

ignition is most likely toast. as riwwp said we need the comp #s and rpm from the test

 

Even if your ignition ISN'T causing misfires, at 30k, stock ignition is down ~30whp. But yeah, your ignition is most likely the source of the problems, although your cat is probably dead as a result too.