what is knock?

Morrmat · October 16, 2007, 07:49:18 PM

Quote from: tezz12345it has just been mapped and running nice n rich and no knock but heat light flickerd on dash a bit today at around 6k so just worried everthing has been checked n map is good, may be dodjy senser, only has done it when second turbo boosting

i was told when the heat light flashes its either you injectors maxing out or the obvious - high heat temps going thru your cat!

not neccasarily det!

chrisJDM · October 16, 2007, 08:01:07 PM

Quote from: Morrmati was told when the heat light flashes its either you injectors maxing out or the obvious - high heat temps going thru your cat!

not neccasarily det!

Thats true with a standard ecu but if you have a apexi power fc then the heat light also flashes with knock

Red and Single · October 16, 2007, 08:18:25 PM

Replaced mine ages ago as I was getting silly readings, it is much better now, but still get the odd silly one.

TBH if you do get serious knock, the motor will throw a tip or two within a few milliseconds, to put it another way, if you had knock, you would have already fducked your engine

ro284 · October 16, 2007, 08:31:40 PM

QuoteReplaced mine ages ago as I was getting silly readings, it is much better now, but still get the odd silly one.

Was that a difficult job mate?
cheers

Red and Single · October 16, 2007, 08:52:04 PM

ABSOLUTE CAKE

From memory,

buy new sensor (Go mine from Clive)
Lift Bonnet, remove intake elbow. Disconnect Battery.
Locate sensor and unclip cable and connector.
Remove sensor using spanner.
Install new sensor.
Replace cables, make connection, refit elbow, reconnect battery, close bonnett.

Off you go.

hth

Red and Single · October 16, 2007, 08:53:48 PM

Thinking about it, finding the connector was fun iirc....otherwise fine though.

ro284 · October 16, 2007, 09:06:49 PM

Thanks Dave, sounds as easy as changing a spark plug! :cheers

nikp · October 17, 2007, 08:57:59 AM

Quote from: Red and SingleReplaced mine ages ago as I was getting silly readings, it is much better now, but still get the odd silly one.

ditto. I did the same. I still get the odd silly reading. I just ignore them now!

tezz12345 · October 17, 2007, 04:46:49 PM

i get 86 hitting red line in first gear reversing off driveway at 3 mph had 76 but gunning it to red line in 2nd + very low and if i back off n hit gas again hard it spikes a bit

tezz12345 · October 17, 2007, 04:47:22 PM

is it only a real big problem if its high all time on boost

RobbieRX-7 · October 17, 2007, 04:59:41 PM

I get readings over 140 on mine on full boost. I dont think the knock sensor does sod all anyway.