Misfire at idle as well as the 3800rpm hesitation
 

car is a STOCk 1988 gxl. i have searched on this problem, but couldn’t find any solutions, in most cases the car had been modified.

ive been trying to pass smog, with no avail. :wallbash:

the car has a misfire at idle, also if i hold the rpm anywhere from 1k to 2k there is a slight misfire.

and i have the 3800 rpm hesitation, usually only when the car is cold, or under load, such as going of a steep grade in fourth gear.

any help is appreciated.

thanks

check the FAQ's... 3800 hes is usually the ECU ground; It's a pain in the arse to get too, but it's way worth it to fix!

Can someone link the ECU ground fix? I am having the exact same symptoms on my S4 TII.

yes plz

Damn wierd, I'm having the same problem...


HELP US!

i just checked my tps, i checked it all the way through its swing, and its dialed right in at 1 ohm at idle.

hello

patience is a vurtue

You should be able to find something useful in this thread...
https://www.rx7club.com/2nd-gen-archive-72/grounding-how-thorough-discriptive-199558/

pressure sensor... hooked up? disconnected? test with new one??

any other ideas? all my grounds are good.