cutting out after fitting ph3's

[richy_t_123]

Fitted newman ph3's in my vts but car keeps cutting out on tick over. Timing is fine worked out if I pull the throttle cable and move the metal clip that adjusts it so its got more revs it ticks over fine? Does that mean I just need to adjust the throttle body some how? Hope that makes sence

[DanTvts]

Not really it needs mapping to suit the cams & other mods really. Some people have issues with idle, some don't.

When i was running 708's in my vts it only cut out once or twice in 6 months, obviously a very similar profile and people have the same issues with these.

I might be completely barking up the wrong tree here but everyone i know who's had a later car ( 3 plug ) seems to have idle issues with 708's or ph3's. I only know two people with them in earlier cars, not including mine (single plug) and they don't seem to have idle problems, definitely a lumpy idle, but at least it idles lol.

Not sure whether thats a coincidence or not to be honest!

[rich112]

Most cams tend to make the car cut out without a map. Adjusting the throttle so its permantley open isn't a great idea.

[Jay_]

Piss through fuel...

Get it mapped!

[Karlb1]

As said, it needs mapping.

Your air/fuel ratio etc will be all over the place without a remap.
You'll probably do more damage than good if you keep driving it over a long term period like that, bite the bullet and get it remapped, you'll also get better power gains when it's mapped properly to the mods you've got.

[richy_t_123]

Think yous are right lads, looking in to geting it mapped now.

[Ross]

If you retard the exhaust cam a little you can cure the cutting out but you'll be down on power. Might make it liveable until you get it mapped tho. :)

[luthor1]

for goodness-sake DONT use the throttle cable clip to open up the throttle plate.

The throttle plate is adjusted by a screw.

The ECU reads the throttle voltage, and it MUST be under 0.7volts at rest otherwise the stock ECU won't go into idle.

The ECU will target 14.7:1 AFR using the narrowband sensor at idle which the PH3 cams may struggle to do.

Hope some of that helps!

[richy_t_123]

Car is off the road at the min anyway so doesn't really matter. When I get it mapped will I need adjustable pullys? Or does the timing stay as normal?

[richy_t_123]

for goodness-sake DONT use the throttle cable clip to open up the throttle plate.

The throttle plate is adjusted by a screw.

The ECU reads the throttle voltage, and it MUST be under 0.7volts at rest otherwise the stock ECU won't go into idle.

The ECU will target 14.7:1 AFR using the narrowband sensor at idle which the PH3 cams may struggle to do.

Hope some of that helps!

I know that is not a fix was just to get the car to tick over as It would not even start propaly
The car is off the road atm so just want it sorted befor I get it back out

Thanks

[KamRacing]

Car is off the road at the min anyway so doesn't really matter. When I get it mapped will I need adjustable pullys? Or does the timing stay as normal?

Keep it the same to start. Who timed them up when they were fitted? What were they done at?

[richy_t_123]

Fitted myself mate timing is set to std

[luthor1]

the car has adjustable cam pulleys as standard so you *already* have those :)

[richy_t_123]

the car has adjustable cam pulleys as standard so you *already* have those :)

Wasn't sure if there were up to the job thanks :)

[luthor1]

yeah they are really good in my opinion, because you have the standard marks you can set them to so you're always starting from bog standard