LSA missing/hesitation

LSA missing/hesitation

Author
Discussion

Eldest23

Original Poster:

79 posts

137 months

Sunday 23rd April 2017
quotequote all
Hi guys
Seem to get a slight miss or hesitation while under load in the car and when going from one gear to the next it seems to hesitate when the throttle is re-applied.
Any help greatly appreciated

BartW

1,693 posts

168 months

Monday 24th April 2017
quotequote all
They all seem to have it.

pah250

3,267 posts

154 months

Monday 24th April 2017
quotequote all
Is yours modded? Might be worth checking HT leads.

BartW said:
They all seem to have it.
My LSA doesn't do this. Perfectly smooth and linear.

bigcraig400

68 posts

107 months

Monday 24th April 2017
quotequote all
BartW said:
They all seem to have it.
haven't noticed mines doing anything like that either,,,,
Like said I'd make sure all the servicable items are 100%,,,
Check for boost leaks,,,
wouldn't rule out Crappy petrol either

HappyMidget

6,788 posts

114 months

Monday 24th April 2017
quotequote all
Stock factory tune seems to have a fair bit of knock which can cause quite a bit of knock retard on low quality fuels. Knocks just past 2500rpm and again at about 4000rpm.

Eldest23

Original Poster:

79 posts

137 months

Monday 24th April 2017
quotequote all
yeah it is modified and all the stuff is brand new have looked at the leads and plugs but can't see anything obvious.

BartW

1,693 posts

168 months

Tuesday 25th April 2017
quotequote all
Both of the cars I have access to have the same hesitation / missing / knock.

Standard cars.

HappyMidget

6,788 posts

114 months

Tuesday 25th April 2017
quotequote all
BartW said:
Both of the cars I have access to have the same hesitation / missing / knock.

Standard cars.
What fuel you use Bart?

BartW

1,693 posts

168 months

Wednesday 26th April 2017
quotequote all
Admittedly standard unleaded. You think I should go a higher octane?

HappyMidget

6,788 posts

114 months

Wednesday 26th April 2017
quotequote all
Yup, stock timing is really quite aggressive the the higher octane really helps.

Eldest23

Original Poster:

79 posts

137 months

Wednesday 26th April 2017
quotequote all
I use the high octane fuel but still have the same issue.