Stalling Issue
Stalling Issue Help me shed some light on this issue. I have a 97 z28 with a delteq coil convertion. its been running good but recently its been stalling like as if the spark cuts out. My fuel pressure is good. It will just cute out for a split second when its cold but completely stall once warmed up. When Im driving and its warm it will cut out for a few seconds but start back up because in rolling in gear. When it fired back up I get a nasty back fire out of the exhaust will a huge fire ball that I can see in my side mirror. My guess is its still pumping fuel and when it stalls and it ignites in the exhaust when the spark come back. Does this cutting out seem like a opti issue? I have band new coild and a new ICM for the Delteq.
Thanks for the thought. The fuel pressure stays steady when it stalls. I do notice the red light on the delteq controller turn off then come back on. Today I replaced the opti with not luck. the car is still stalling
TECH Addict
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
Sounds to me like you have a loose wire related to the Delteq system or a faulty Delteq controller (or whatever they call it).
The Opti, in your case, only tells the PCM of the cranks and cam positions. If your injectors AND spark fails simultaneously then it's likely Opti sensor related. If only one fails, it's not the Opti.
The Opti, in your case, only tells the PCM of the cranks and cam positions. If your injectors AND spark fails simultaneously then it's likely Opti sensor related. If only one fails, it's not the Opti.
Sounds to me like you have a loose wire related to the Delteq system or a faulty Delteq controller (or whatever they call it).
The Opti, in your case, only tells the PCM of the cranks and cam positions. If your injectors AND spark fails simultaneously then it's likely Opti sensor related. If only one fails, it's not the Opti.
The Opti, in your case, only tells the PCM of the cranks and cam positions. If your injectors AND spark fails simultaneously then it's likely Opti sensor related. If only one fails, it's not the Opti.
Banned
Joined: Jan 2013
Posts: 588
Likes: 0
From: Las Vegas
U can get a scan for the PCM and read any codes. Also your OBD II can have codes stored that dont lite up the SES light.
It sounds temperature related like a semi-conductor device. U need to contact delteq and at least find out what that LED means.
It sounds temperature related like a semi-conductor device. U need to contact delteq and at least find out what that LED means.
