Vs flat spot!?!?

[johnsy_vs]

My vs v6 series 2 ecotec has a flat spot when stabbing the throttle. I've replaced plugs leads fuel injectors, cleaned throttle body and plenum. I'm lead to believe its non electrical as no fault codes are present. Any help at all is appreciated. Cheers!

 

[stuartl1989]

got the same problem and then some but no idea myself!

 

[johnsy_vs]

Its really starting to annoy me, because I know it's not supposed to be there....... I'm thinking fuel pressure, maybe the pumps shagged but can't change it at the moment got no money's after injectors lol.

 

[pjdm1980]

Have you done a code check?

 

[johnsy_vs]

Yeah mate no codes pop up just 12 which means all good????

 

[stuartl1989]

12 good, does it hesitate or anything on acceleration after driving for a bit?

 

[johnsy_vs]

Haven't had a chance to drive, un reg ATM..... But I got it hot and it seemed to be less severe..... But still noticeable

 

[vs commi]

could be your fuel filter causing low fuel presure

 

[RX25SE]

The TPS may have a dead spot in it.

Ask your local mechanic to do a TPS sweep test with his scan tool (I assume he would have one).

 

[johnsy_vs]

What's tps mate?? Not good with acronyms lol