The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

ECMlink Dumping wastegate straight onto alternator

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Panchoelkatch

Proven Member
124
5
Jun 4, 2014
Lemoore, California
1). Any boost, vac, or exhaust leaks?
No

2). Verified mechanical timing?
Yes
3). Verified base timing?
Yes
4). Ignition system
COP or Stock Coil:Stock
Wire brand and Age:New wires
Spark Plug brand, type and Gap: BPR8ES .028

5). Motor health (Compression Test)
Cylinder 1:150
Cylinder 2:150
Cylinder 3:150
Cylinder 4:150

6). Performed basic throttle body adjustments?
Idle Switch:Yes
Throttle Cable:yes
TPS:yes
BISS:yes

7). Compression ratio
unknown
8). Any known bad sensors or brittle wiring?
I can't figure out how to properly log IAT or IAT is bad. Already ordered a new one
9). Any DTC/CEL codes?
no


10). Electrical system
Car off (not running):
Car running:

11). Base fuel pressure and injector values
Base Fuel Pressure:43 (Adjusted using AFPR)
Injector Size (cc/min):750

12). Properly calibrated and configured wideband sensor
Sensor Brand:AEM
Calibration Date:??

13). Type of fuel
Type:91 OCtane
Percent of Ethanol:

14). Watched ECMlink how-to videos?
yes


I'm waiting on my buddy to help me fab up a new dump tube after relocating my wastegate. Anyways I decided to go out and do a couple of test hits and low and behold I have a strange fuel cut/backfire/popping/surge before at about 6500-7000 RPM depending on what gear I am in. I'm wondering if dumping directly near the alternator is causing some voltage drops up top? Stupid me didn't log voltage....fml haha I'm going out and doing another run tomorrow, just wondering what you all have to say.
 

Attachments

You must be registered for see attachments list
Ok so went out this morning and did a pull. First Pull I got 23 lbs of boost up to 7500, no problem. Voltage was at about 13.0. Did another pull 30 minutes later, was a little hotter out, and I got the same annoying fuel cut /Pop/ and didn't hit full boost. Well I checked log and voltage is at 12.6/7 during that shitty pull. So I'm guessing the heat from the dump tube being so close to the alternator is causing this voltage drop!
 

Attachments

You must be registered for see attachments list
From what I understand voltage drop is normal as you get into the higher RPM range. I don't recommend dumping on top of the alternator but I don't believe you're misfire is coming from the alternator.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Latest Classifieds

  • For sale 1997 eagle talon tsi
    I have a 1997 eagle talon tsi fwd auto for sale. It has 108k miles and in good condition.Recent...
    • El_marto
    • Updated:
    • Expires
  • For sale 1G DSM 4G63 PARTS
    Cleaning out my shop closet, Buyer covers shipping & fee.Parts:.20 Over Turbo 6-Bolt Block...
    • The_Partout_Spot
    • Updated:
    • Expires
  • Wanted 4G63 800cc injectors
    Im looking for a set of injectors that are at least 800cc. Thanks!
    • DSM_Thorpe
    • Updated:
    • Expires
  • For sale 2g 2g rear brace arms
    2g rear subframe brace arms. Missing one of the bushing spacers. No rust. Had someone looking...
    • Galant665
    • Updated:
    • Expires
  • For sale 1g 1GB Eclipse Tail Lights
    1GB Eclipse Tail Lights $80 + shipping and paypal fees* not flawless but in very good shape...
    • jersygsx
    • Updated:
    • Expires
Back
Top