My car is not idling properly and cuts out and will take ages to accelerate any ideas what's up it's got a decat pipe on it if that could be the problem ??

 

year? Mileage? Auto/MT? Last service, and what's been done in terms of replacing things under the hood? Do you let it warm up before driving it hard?

Could be bad coils, bad wires, worn spark plugs or a dirty MAF.

Also, low compression, jammed intake ports or a dirty throttle body.

The stuff on the top is relatively cheap. The stuff on the bottom, not so much.

 

start with maf cleaner and an oil change/ spark plug change

 

Depends on the last time you did this but, it sounds like it needs to be serviced. Plugs, plug wires and coils. Also for good measure a maf cleaning and new air filter. That should be a good start.

 

Had the car a year never serviced I've put the cat back on running little bit better and getting new sparks today.

 

coils. do the plugs and wires too.

 

yup. no sense in doing plugs without coils and wires at this point. Bad coils/wires foul perfectly good spark plugs.

You might want to take it to the dealer and have a compression test done on it before anything. It would suck to spend a few hundred bucks on coils wires and plugs to find out you need a new engine. If it's running as bad as you say, they should do it for free under your 100,000 mile engine warranty.

 

And you wonder why your car is running like sh@t...

 

Had to get the car towed home yesterday my mechanic thinks my backbox may be damaged, i'm waiting on the sparks to be fitted today and original exhaust put back on also it seemed to have drunk a ridiculous amount of engine coolant had lots of smoke coming from beneath the bonnet and bits of like molten metal coming out the exhaust when revved.

 

uh. sure. drinking coolant and smoke and bits of metal coming out the exhaust is surely a computer problem.

Sounds like its time for a new engine.

 

Yup and clean your throttle body

 

Should I set light to now then or later, I don't think I can afford a new engine.

 

makes me sad no wonder rotarys have a bad name in the uk people like you that dont look after them.

 

*sigh. . .

Drinking coolant... where does the coolant go?

White smoke... white smoke means burning coolant. Answers the question above.

Why are you burning coolant? Probably because you're leaking coolant into your engine... How?, you have probably overheated your engine caused by factory defects of just lack of oil in the oil metering pump, or just lack of oil. You don't sound like the type that tops off the oil after every other fuel-up. (No offense)

So, the coolant seals on the side of your engine have started leaking, which means your engine will need replaced. Or rebuilt if the housings are too ruined... in any case, its labor intensive.

I don't think i have symbol for pounds on my keyboard, but this gives you the idea: $,$$$.$$

I don't believe the UK has the same 100,000 mile power train warranty as the U.S. So you may be paying out the nose for this one.

. . . . . . But this is worst case. Hopefully its plugs, wires and coils, the smoke is actually just unburnt fuel cause by crappy ignition, and the bits of molten metal out of the exhaust is bits of your cat.

Hopefully.

 

oh wow good one. I did not catch that part

 

My engine tips have gone and I've been told it's gonna be mega money to fix is there a way to bodge it up so I can px it with something else??

 

You can put a ls2 from a gto in it.

 

Engine tips. . . you must mean apex seals or side seals.

There is no way to bodge it up to make the engine work properly. In fact, if there are little bits of metal shooting around your engine you're literally trashing it the more you drive.

I forgot the original information, but mazda has a 8 year 100k mile warranty on the core engine (which sound like your problem)

So I would pursue that warranty first.

 

It actually did turn out to be ignition coils, I'm never using the mechanic I use normally as it turned out he didn't have a ******* clue what he was talking about, in the end it cost me £600 for coils and labour but it still idles quite low round 700 rpm how can I get this up ??