Low RPM hesitation and the odd POP!

[framey]

Ok, I changed the cat to a straight through because I was getting a "Heat" light. Although response seems a little better, the low rpm (3000 and below) hesitation seems more noticeable. Also it seems to "pop" (dare I say backfires) now and then. Sometimes when I turn it off, I get a pop too!

Any ideas?

btw when I was sitting in my car looking up for inspiration I noticed a lable on the drivers visor which had the same "Heat" symbol and loads of japanese writing on it. When I asked a japanese guy at work what it said, he told me it said, "if this light lights comes on, stop the car immediately and take it to a service engineer"(?)! Apparently it\'s the engine bay overheating indicator. Took it in for a service and it\'s mysteriously been extinguished since (and yes I checked the bulb!!).

[J4P RX]

Your pops are probably flames.  Which is nice :bandit  

Dont know about anything else.

[framey]

Flames??!!!

How cool am I??!!!

[Martin]

poping sound? have you checked the plugs? sounds like its misfiring?

[framey]

Yeah, it was serviced only last week and they said the plugs were fine so they didn\'t change them.

Did some say FLAMES???!!! lol

[rxangus]

Had exactly the same when I got the cat removed. Popping is normal as any unburnt fuel is ignited by the hot exhaust.

I have since fitted a new cat as I was getting fuel cut due to boost spiking brought on by lack of cat. The perceived wisdom is don\'t run without a cat unless you have an aftermarket ECU.

Angus

[framey]

wow! A new cat?! How much did that cost, if you don\'t mind me asking?

[rxangus]

£275 + VAT and a new airpipe which was £32+VAT

Both from WGT

Cheers

Angus