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-   -   Extreme hesitation under load (https://www.miataturbo.net/megasquirt-18/extreme-hesitation-under-load-66164/)

Ryanxstorey 05-27-2012 05:52 PM

Extreme hesitation under load
 
My set up
1993 1.6
diypnp
sr20 turbo
rx7 injectors

Just recently rebuilt the motor replacing all the seals.

Anyways ever since I got it back together it has this terrible hesitation whenever I hit the gas. Ill press the gas for a second nothing happens then my afr goes to 9 and its just ------- awful. If i slowly easy into the throttle carefully it wont due it but at any point in time when I hit the throttle it just bogs out for a slight second afr goes full rich then my car lunges forward and finally everything compensates for itself. As of right now I do not have a variable tps. I haven't installed one yet because I have not had problems like this before.

This is extremely frustrating and i am posting it in the megasquirt section as I think it has something to do with tuning.

Techsalvager 05-27-2012 06:08 PM

It probably does have to do with tuning, but we need a tune and a log of it.

do yourself a favor and get a variable TPS before doing anything more though.

Ryanxstorey 05-27-2012 06:10 PM

before this happened the car ran perfectly fine without a vtps

Ryanxstorey 05-27-2012 06:12 PM

I have a log. I honestly don't know how to post a datalog or my tune

Techsalvager 05-27-2012 06:13 PM

doubtful it ran perfectly fine, I've also used the systems without a tps and I would suggest if you have the ablitiy to get one, get it.

manage attachments while you are making a post, under additional options

Ryanxstorey 05-27-2012 06:14 PM

I have the ability to put one in

Ryanxstorey 05-27-2012 06:25 PM

2 Attachment(s)
my tune

EunosBen 05-28-2012 07:21 AM

disable AE & retry, see if symptoms are the same or if it goes lean instead (change MAPdot throshold to 1000 or something)

Save a log & post it up here while you do it.

Braineack 05-29-2012 08:54 AM

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Ryanxstorey 05-29-2012 10:41 AM

Sorry if I could drive my car I would. I have a hole in my rear water neck and all the coolant pretty much leaked out of my car but I think it's my iat to blame for this.


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