my series 1 is running like an old 1.1 fiesta, starts, idles and drives fine but when on boost its not responsive at all , after reading through other threads for hours on end i am fairly sure its running very lean due to faulty wiring to the charge air temp sensor or a faulty throttle position sensor? any ideas on how to test either of these or anything else it could be?
thanks in advance safechav!!!!

 

have you boost gauge? how much boost?

does your TPS click when you start to move throotle?

 

any smoke when you pull away or on boost

 

running just under a bar, holds it fine,
no smoke or rattles, turned on ignition and moved the throttle and it made a slight click, like a relay but quieter?

 

it must click with ignition turn on or off, no matter. did you opet throttle and pull throttle cable and see if click?

 

yeah like i said ignition on, ear to switch, open throttle, hear a click, like an electric switch or relay clicking on. is this right?
i thought it was but the more i look into this the more i realise i dont understand about the car i have owned for the past 4 yrs!
its really starting to annoy me as i dont wanna drive it for fear of killing it and there has been some nice cold sunny days lately!

 

take it to a tuner

 

maybe an air leek somewhere? check all jubalee clips etc. just a thaught

 

can anybody recomend anyone in the cambridge area to take it to?

 

SCS near Peterborough is probably the best/nearest place for you.

Sounds like you night have retarded ignition timing.

 

Before you take it anywhere i would be unplugging all the sensors and ecu's and having a continuity testing session to check for broken wires.

You can test the TPS with a multimeter its very easy to do.

 

any chance of telling me how to do this?
can borrow a multimeter from work, not too clued up with electrics!
do u think it could be a sensor problem then?

 

Sorry mate i meant to post up the diagram for the TPS.

As for the continuity testing, you'll need a wiring diagram and to unplug everything as ive said.

 

fair play , i notice that you have said in past threads thatr you have had trouble with this in the past?
what were the symptons?

 

For me changing the TPS made the difference, but i was new to RS's then and didn't really know what i was doing to be honest.

We did loads of stuff to it cos it was all cobbled up but i seemed to get the performance back when i changed the TPS.

The timing can also be a big influence on it i believe, MFI is pants

 

good mechanic friend done cambelt not so long back and re done timing, says its bang on.
problem started before timing was disturbed ,
any ideas if u can still get them from fords/
new one wouldnt hurt as i have changed loads of stuff trying to cure it!

 

Check the belt timing its so easy on a CVH

Was the dizzy played with at all?

You can still get them, when i was doing mine about 5 years ago i paid £40 odd for one, but then fixed the old one so i sold it on eBay.

Test it first though.

 

99% sure timing is ok.
had noticed a broken wire to charge air temp sensor and
thought that must be the cause but i have repaired it and
made no difference. timing is perfect on a timing light, that
good enough? got a vernier wheel fittd too.

 

tps is ok?

must be something with fuel then (?)

 

could be
i have changed the fuel pump and even managed to get a new fuelpump relay from fords ( £45!!! )
havent changed fuel filter tho so i guess it could be this also
got new hoses, solid top hose, even swapped the turbo as tis was smoking slightly,
still no joy

 

whats your timming set at? my charge air temp sensor isnt conected,will this effect anything? my amal valve is wired to a switch so i can use it as a 2 stage boost controler 6psi or 15psi

 

dunno mate, and does yours boost up and pull ok wiith sensor
not connected?
why isnt it connected anyway?
i thought it was like a safety in if your act gets too hot it
would cut the amount of fuel delivered to stop you cooking things?
or am i totally wrong yet again?

 

actually pretty sure timing is set at 12 degrees does this sound right?
piper cam , vernier wheel , felpro head gasket , turbosystems chip ,
k & n , stainless pipe, -31 , bar of boost and a pace radiator, so why
the funk am i being overtaken by mopeds?