ignition coil
Re: ignition coil
I decided to change the optispark with a Delphi one that I had as a spare. I took the one that I had taken off apart and it was full of grime and such. It had a really weak looking seal and I think the vents were hooked up wrong. As I understand one of them goes to vacuum on the manifold and one goes to intake elbow between air filter and maf sensor, correct? I don't want the same thing happening again.
Re: ignition coil
The larger connection midway between the filter and the MAF sensor is the connection for the air supply to the AIR pump. Has your AIR been deleted? If so, that connection should be closed off.
95-97 should have the hole in the RUBBER intake elbow between the MAF sensor and the throttle body. If your 97 elbow doesn't have one, you have the 93/94 intake elbow. Drill a hole in the rubber elbow slightly smaller than the blue plastic vent line elbow, and push the blue plastic elbow into it.
The connection for the Opti vent needs to be AFTER the MAF sensor, because that air ends up in the intake manifold, and has to be accounted for as part of the air/fuel calculation.
95-97 should have the hole in the RUBBER intake elbow between the MAF sensor and the throttle body. If your 97 elbow doesn't have one, you have the 93/94 intake elbow. Drill a hole in the rubber elbow slightly smaller than the blue plastic vent line elbow, and push the blue plastic elbow into it.
The connection for the Opti vent needs to be AFTER the MAF sensor, because that air ends up in the intake manifold, and has to be accounted for as part of the air/fuel calculation.
Last edited by Injuneer; Jun 1, 2015 at 08:12 AM.
Re: ignition coil
The AIR pump bolts to the front of the engine, driver's side, below the head.
Do not leave the hole in the air duct open... it would be allowing dirty air into the engine.
Courtesy of Shoebox
http://shbox.com/1/air_pump_recall.jpg
Do not leave the hole in the air duct open... it would be allowing dirty air into the engine.
Courtesy of Shoebox
http://shbox.com/1/air_pump_recall.jpg
Re: ignition coil
Driver's side of the T56 manual transmission.
Go back and read my earlier response:
https://www.camaroz28.com/forums/lt1...9/#post6976760
Go back and read my earlier response:
https://www.camaroz28.com/forums/lt1...9/#post6976760
Re: ignition coil
Cranks and runs perfect. After about 30 minutes ses light came on. Scanned and got P0140 and P0160 oxygen sensor no activity bank 1 and bank 2 respectively. Going to look for a loose harness but will these harm anything. Also when starting it when hot it seems to struggle at first then starts within a few seconds. Starter may be getting weak or have a bad spot that shows up when hot?
Re: ignition coil
Those codes are for the after-cat sensors. They don't control anything, just there to see if the cats are working. Is it possible someone has removed the cats and replaced the O2 sensors with "O2 sims"?


