Heat light flicker...

[Cally]

During giving my car some today I came to a motorway sliproad and was going up it int 3rd, looked over my shoulder to check it was free for WOT sitting about 5k revs gave it some WOT and the heat light flickered 3 times very quick so I put it into 4th and backed off.
What exactly does this mean? I did a search and its a det warning? Does this mean I have to get someone to have a look at my map or anything? Could it / will it have done any harm?:3Confused

[Jit]

if the heat light flickers 3 times quickly...then thats a knock warning on the apexi power fc. It would be wise to get someone to check the knock readings and the afrs and egts to make sure the map is safe!

[Cally]

hmm, duno anyone that can do this up here. It was setup by RE:WORX so i presume its a good map?!

[Jit]

prob just a faulty knock sensor

[Cally]

how do I know if it is?

[rx7veilside]

never presume a faulty knock sensor allways check it out..flickering on wot is not a good sign off boost is not a worry

[Jit]

get it hooked up to a wideband and a datalogit and you will soon find out....
a knock sensor is just a mic...it pics up noise....it can ofeten pick up transmission noise or any other noise from the engine area....
Only way to find out is to check the afrs and comp test the car.

[davefrith]

not a warning light I would disregard

[Cally]

eek! does anyone know anyone in scotland that could check it out? the engine was rebuilt under 4k miles ago... so hoping its nothing.

[Cally]

What exaxtly does that wee light mean? rebuild time? I am a little confused about it all after doing a search. Car starts etc fine.

[rx7veilside]

if running apexi pfc then it is a det warning light BUT they are tempramental if on boost it is very possible slight det do not persist off throttle they can pick up noise especialy on ported engines...dont forget det can occur if intake temp too high/fuel slightly lower ron etc.imho these cars if standard are fine but tune them and u need to be more carefull than a piston engine
if ur car is tuned then make sure u have the fuelling to match and then have water injection fitted but tune the care without wi active then after tune re activate wi that shd ensure no det..run a good fuel pump and if able fuel pressure reg...WGT must be a closer option and i would have it on the rollers and discuss with pip.its not really practical to use tuners at other end of country to u..I have never used wgt but they have a good rep/dont take a chance as if u det badly that is a nightmare

[Cally]

Really need to get the correct commander to keep an eye on the inlet temps. The engine is ported so could be that. Is this light flashing once serious enough for me to have to trailor the car halfway across the country? Surely if mapped by reworx then the fuelling etc should be fine for the mods on the car?

[adib]

mine flashes when i first start down the road then ok only when cold

[Rx-7 turbz]

i kept getting high knock levels when on throttle and this was down to a dodgy coil pack so dont just think its a faulty knock sensor, i popped an engine with 4k on rebuild and its no fun

[stylus350]

At Pips my car was showing lots of knock on the commander but he said it was not a true reading as his equipment showed almost no knock(at 1.1 and no WI:) ). Still would not like to take the chance but seeing this has happened ONCE then I would forget about it unless it happens again. Ignoring persistant warnings is when you get stupid.