Home Register FAQ Members List Photo Gallery Garage Search Today's Posts Mark Forums Read Vendors



Go Back   Third Generation F-Body Message Boards > Tech Boards > TPI
Reload this Page TPI 3000-4500 RPM misfire
Sign in using an external account
Register Forgot Password?

TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.

Welcome to ThirdGen.org!
Welcome to ThirdGen.org.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!


Reply
 
Thread Tools Search this Thread
Old 02-04-2008, 08:59 PM   #1
Junior Member
 
Join Date: Dec 2007
Posts: 2

Classifieds Rating: (0)
TPI 3000-4500 RPM misfire
Can anyone help me out? i have a 84 Z28 that i installed a stock 305 and TPI with MAF off of an 87 IROC. I have replaced everthing in my ignition system and still i have a missfire around 3000-4500 RPM. The engine runs well till then ,, but as soon as i hit around 3000 RPM the tach starts jumping around and the engine surges and backfires throught the exhaust. When i unplug the timing conector from the computer it seems to run better. Does anyone have any sugestions? THANKS!!!!
z28_guy_377 is offline vBGarage Page   Reply With Quote
Old 02-05-2008, 09:38 AM   #2
Senior Member
 
Join Date: Aug 1999
Location: sweden
Posts: 2,256
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt

Classifieds Rating: (0)
Re: TPI 3000-4500 RPM misfire
* check your timing, should be 6deg with timing connector (EST) disconnected.

* check your dizzy/ignition module
gta324 is offline vBGarage Page   Reply With Quote
Old 02-05-2008, 07:55 PM   #3
Junior Member
 
Join Date: Dec 2007
Posts: 2

Classifieds Rating: (0)
Re: TPI 3000-4500 RPM misfire
Quote:
Originally Posted by gta324 View Post
* check your timing, should be 6deg with timing connector (EST) disconnected.

* check your dizzy/ignition module
Thanks for the reply!!!!!!! i found my problem... distributor gear was shot...I put a new one on the shaft,, it runs smooth!!!!!!!! THANKS!!!!!
z28_guy_377 is offline vBGarage Page   Reply With Quote
Old 02-05-2008, 08:08 PM   #4
Senior Member
 
TIMMYS89GTA's Avatar
 
Join Date: Jul 2006
Location: ocklawaha FL.
Posts: 1,337
Car: 81z-28,89gta,91z-28 03 1500
Engine: 355,L98vette tpi,327
Transmission: TH350/700R4/700r4/4l80E
Axle/Gears: 3;73/3;27/2;73/3;73

Classifieds Rating: (21)
Re: TPI 3000-4500 RPM misfire
CONGRATS!!
Glad to hear your in good shape now.
BTW, welcome to TGO! I absolutely LOVE this place.
TIMMYS89GTA is offline vBGarage Page   Reply With Quote
Old 02-05-2008, 08:08 PM
ThirdGen
1992 Camaro




Paid Advertisement


Reply

Go Back   Third Generation F-Body Message Boards > Tech Boards > TPI
Reload this Page TPI 3000-4500 RPM misfire
« Ram Air Hood Clearance for my Custom Runners | HELP! L98/superram/vortec TPI intake? »

Tags
misfire, tpi
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off

 

1982 Camaro '82 || 1983 Camaro '83 || 1984 Camaro '84 || 1985 Camaro '85 || 1986 Camaro '86 || 1987 Camaro '87 || 1988 Camaro '88 || 1989 Camaro '89 || 1990 Camaro '90 || 1991 Camaro '91 || 1992 Camaro '92


All times are GMT -5. The time now is 03:43 PM.

Contact Us - ThirdGen.Org - Advertising - Privacy Policy - Terms of Use - Jobs - Top

Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.5.2
All content copyright © 1997 - 2012 ThirdGen.org. All rights reserved. No part of this website may be reproduced without the expressed, documented, and written consent of ThirdGen.org's Administrators.

Emails & Contact Details