TPI sputtering problems - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Chevy Tech
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old August 22nd, 2014, 09:01 PM   #1
lewit12
Newbie
 
Join Date: 06-09-13
Location: New Era
Posts: 16
iTrader: (0)
Mentioned: 0 Post(s)
Default TPI sputtering problems

Ok guys I'm having problems with my Tpi 383..it's in a yj wrangler. I just did the swap this spring and it was running good for a week or so, then it started back firing really loud. Found out the distributer took a crap. So I replaced it with a new MSD pro billet distributer, that problem was solved (So I thought). Then about a week later there has been a sputter when you let off the throttle and then get back on it. It's ok at cursing speeds, it only seems to do it when your really getting on the gas hard. I've replaced the coil, and all new MSD super conducter wires. The whole ignition is brand new. The plugs were new this spring so I have a feeling it's not the plugs. Has anyone delt with anything like this? I'm up for all suggestions. Thanks
lewit12 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old August 22nd, 2014, 11:15 PM   #2
Nitrodave
Member
 
Join Date: 02-04-14
Location: Crawford county/ Livingston county
Posts: 96
iTrader: (2)
Mentioned: 0 Post(s)
Default

Check fuel pressure , flow rate , and pressure regulator for leaking.
Nitrodave is offline   Reply With Quote
Old August 22nd, 2014, 11:31 PM   #3
cerial
Senior Member
 
cerial's Avatar
 
Join Date: 09-06-08
Location: Caledonia,MI
Posts: 1,756
iTrader: (3)
Mentioned: 1 Post(s)
Default

What did it come out of? That info will help.

Lets get the cheap fixes out of the way. Pull the TPS being careful not to break the gasket. Shoot the tps with some carb cleaner flicking it open and closed a few times then reinstall. If it now runs better replace the part as cleaning it just bought you a little time.

Pull the IAC shoot it with some carb cleaner and compress the spring a few times. This is just a maintance thing to prolong the IAC. If it runs better replace it as soon as you can as it will go bad again.

Pull the hose going to the EGR solenoid and shoot some air through it removing the oil. Check the hose for leaks and replace as needed. Remove the plastic cover then the quarter sized piece of foam covering the EGR solenoid inlet. With the engine running place your finger over the inlet and rev the engine a few times. It should sputter and gag like what your describing. If it does this with nothing covering the inlet the sensor is clogged. Replace the sensor there is no easy fix or cleaning it.

You can plug in a tester. But, I have not found one yet that will show a EGR solenoid fault. Most of the time people don't realize that the part is giving them all the headaches and unnecessary replace more costly parts.

It could be a dozen other things from fuel to CPS, to the PCM itself. Shooting the parts that get gummed up and filled with oil residue and carbon is a easy start.
cerial is offline   Reply With Quote
Old August 23rd, 2014, 05:31 AM   #4
lewit12
Newbie
 
Join Date: 06-09-13
Location: New Era
Posts: 16
iTrader: (0)
Mentioned: 0 Post(s)
Default

The motor came from a 91 camaro. Thanks for suggestions guys..I'll try and free some time up this weekend to pull it in and take a look at it. Thanks again!
lewit12 is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Chevy Tech

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

Forum Jump


All times are GMT -5. The time now is 06:41 AM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.67748 seconds with 32 queries