High RPM (5100+ RPMS) WOT Hesitation!!!! - Pontiac Solstice Forum
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 06-18-2019, 10:26 AM Thread Starter
Join Date: May 2017
Posts: 129
High RPM (5100+ RPMS) WOT Hesitation!!!!

So....As the title says......I'm still dealing with a high RPM hesitation above 5100rpms in third and fourth gear (prolly in 1st and 2nd but too quick to feel it). I have the Trifecta base tune....

The wierd thing is.....I've changed the plugs to the stock AC Delco 108s I gapped them to between .026 and .028 (can't fully tell because my feeler guage only has from .026 to .030 which is stupid) and changed the air filter to a stock AC Delco Air filter. Still getting it.

I logged the events and tried to look at misfires....NONE!!!!!!! It's starting to piss me OFF!!!!!!!

So here is what it feels like.....regardless of whether I'm flooring it from 1st through 2nd and into 3rd Always at around 5100 rpms or sitting in 3rd at 3000rpms and flooring it to redline the nice torquey pull feel I was getting sort of "lets off" (as if I let off the gas a bit) then quickly gets going again. Sometimes it does it more than once. Like I said, I checked the datalogs for cylinder misfires and nothing! In some cases the Air Fuel goes to low 11s but not lower. This happens regardless of KR as well!!!!! I can't understand what could be happening.

Also I should say that once it gets above 5100 rpms boost goes from 23psi to 20.5 psi or so, but that doesn't seem to be enough to sort of "interrupt" the torque pull (as I'm feeling) and it doesn't go back up to 23psi when it starts pulling again. Anybody else have this issue and fix it?
MattM is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Pontiac Solstice Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome