COSSIE 1

Hi guys the rev needle is bouncing up and down when accelerating and goes of the scale when revved hard any ideas what it could be ie fooked tacho or something else????cheers

Stu @ M Developments

iTrader: (12)

Intereference i the multiplugs across teh firewall.
As a first measure, disconnect and then reconnect them, see how you get on.

COSSIE 1

cheers stu i thought it might be something to do with that is it worth unplugging them and spraying electrical spray into the plugs etc???btw u will be seeing me in the summer for one of ur stg3 conversions

G2 FSR

Exactly what i do and solves the problem paul.......Its the sensors that run across the back of the engine. I unplugged them, cleaned them and tested....All good You only had to ask

Stu @ M Developments

iTrader: (12)

Depends what you call "Electrical Spray" For gods sake donst spray something like WD40 in, you will make it worse and more susceptible to problems. Just plug and unplug a few times if you dont have the correct (Expensive) electrical connection cleaner.

Stu @ M Developments

iTrader: (12)

If this problem is recouring, the correct solution is to cut them out alltogether before they cause a breakdown.

G2 FSR

Dont use any spray stu. Just do what you quoted, plug and unplug usually and wipe the insides of the plug And yes, have been advised on cutting and soldering the wires together

PeterLucas

I got this problem (on my 2wd though) where is the connector?

The Youth.

iTrader: (1)

2wd don't have them like on a 4wd

steve

richm

other options are the earth connections on the inlet plenum, and coil or ignition amplifier connections.

on 4x4 though, the bulkhead connections are favourite. Pay special attention to the one with the fewer larger wires

COSSIE 1

cheers peeps

Frogford

if its not the plugs along the firewall then its the phase sensor. Mine did exactly the same thing and it was the phase sensor !

HTH

*Bri.4.b.Cos*

Mine is doing exactly the same too. Tried all connections (cleaned a few suspect ones). Still doing it so must be the phase sensor then if i aint missed anything. How much do these cost and availability?

cheers

bri.

pee vee

had the same thing happen to mine.
i bought some multi plugs from local motorsport place
and just replaced the plugs,
never had a problem since.

Frogford

just searched on burtonpower and its Ł24.95

https://www.burtonpower.com/dets_pro...=08013&PSet=98

(secong product from bottom !)

got mine from woodford but cant find there website. Sure they advertise in PF though

HTH

richm

before blaming the phase sensor and rushing out to buy a new one, on 4x4 try running the engine without the phase sensor connected and see if the tacho behaviour changes.. If it still does the same then it's not the sensor.. go looking for more poor connections in the coil path or earths on the plenum, engine earth strap, or body earth just in front of the battery.

Eagle

iTrader: (2)

i had a similar problem .. changed cps and was ok ..