77 280Z Losing Pressure When Pressing Throttle - Page 2 - Open Discussions - Classic Z Car Club Skip to content

77 280Z Losing Pressure When Pressing Throttle

Featured Replies

"OH- and stop using the word ISSUE when you are talking about a PROBLEM. Issues and problems are not synonymous"

 

 

Unless you work for the NSA... :P

C

  • Author

Okay thanks for the help everyone. I ended up opening up the AFM and seeing if the previous owner had tampered with it at all and of course he had. The AFM was set for a rich fuel mixture. I ended up fixing that and the car is Running better. As for the problem with cylinders 3 and 6 yes the spark plugs do have combustion deposit and raw fuel on them. Also I did put new fuel into the car instead of running what was in there.

I'd go ahead and replace the plug wires as a first step.  Bad wires can give you a weak spark and misfiring/stumbling under load.  If that doesn't clear the problem up, then consider your injectors.  I've had very good luck cleaning fuel varnish with Chemtool B12.

I keep an "emergency box" of stuff, such as a set of new, premium sparkplug wires, cap & rotor, spark plugs, coil, etc. I didn't get it all at once, but bought things with the spare cash. I only use it temporarily to diagnose a problem, or for emergencies, so most of it has only been used for a few minutes.

Edited by TomoHawk

S
Sponsored
Advertisement
Go Ad-Free
No ad showing? Ads help support ClassicZcars. If you use an ad blocker, please consider allowing ads on this site or Go Ad-Free.

Create an account or sign in to comment

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.