6G Celicas Forums

Welcome Guest ( Log In | Register )

> Need Help with 5SFE!
post Aug 18, 2011 - 8:26 PM
+Quote Post
Scosh

Enthusiast
*
Joined Mar 13, '10
From New Iberia
Currently Offline

Reputation: 0 (0%)




Hey guys, I just changed out my head gasket not too long ago. After everything was put back together I drove it around a bit and the ride was good as I expected. But a few days after I tried to just floor it to see what it would sound like(just got my exhaust done 2.5" catback and custom intake). Yeah it sounded really nice but I noticed the more the RPM rose the more power was loss, but the engine got louder at 4500RPM and it reminded me of the VTEC that Honda has. I know its a 5SFE and they are like boat anchors, but it sounds to me that my timing may be off. Heres a video of what I was trying to describe, sorry for the poor quality it was hard to try to record, steer, and shift at the same time kindasad.gif



 
Start new topic
Replies
post Aug 21, 2011 - 8:24 PM
+Quote Post
stephen_lee



Enthusiast
*****
Joined Mar 22, '07
From Houston, TX
Currently Offline

Reputation: 4 (100%)




as stated, SMALL CHANGES in the fuel map. not huge. just small "trims" that particular motor runs better on.

Copied from the BGB

"
Vehicles equipped with engine or transmission computers
require a relearn procedure after vehicle battery is disconnected.
Many vehicle computers memorize and store vehicle operation patterns
for optimum driveability and performance. When vehicle battery is
disconnected, this memory is lost. The computer will use default data
until new data from each key start is stored. As computer memorizes
vehicle operation for each new key start...the following complaints
(driveability problems) may exist:

* Harsh Or Poor Shift Quality
* Rough Or Unstable Idle
* Hesitation Or Stumble
* Rich Or Lean Running
* Poor Fuel Mileage

Automatic Transmission

* Set parking brake, start engine in "P" or "N" position.
Warm-up vehicle to normal operating temperature or until
cooling fan cycles.
* Allow vehicle to idle for one minute in "N" position. Select
"D" and allow engine to idle for one minute.
* Accelerate at normal throttle position (20-50%) until vehicle
shifts into top gear.
* Cruise at light to medium throttle.
* Decelerate to a stop, allowing vehicle to downshift, and use
brakes normally.
* Process may be repeated as necessary.

Manual Transmission

* Place transmission in Neutral position.
* Ensure emergency brake has been set and all accessories
are turned off.
* Start engine and bring to normal operating temperature.
* Allow vehicle to idle in Neutral for one minute.
* Initial relearn is complete: process will be completed during
normal driving.
"

EFI fuse powers:
Circuit opening relay
ECU
Fuel sender and pump
Idle air control valve
Various VSVs


This stuff is straight from the toyota manuals.


--------------------
QUOTE
"And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH

1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED
1995 ST: SOLD @273k miles, Auto, all power, CarPC, White
1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810
1994 Lexus LS400: This is my new DD

Posts in this topic
- Scosh   Need Help with 5SFE!   Aug 18, 2011 - 8:26 PM
- - 199celica   sounds to me like your distributor isn't being...   Aug 19, 2011 - 9:36 PM
- - 6G96GT   I believe you'll lose low end power from the e...   Aug 20, 2011 - 5:22 PM
- - Scosh   It has close to 180k miles and it struggles to sta...   Aug 20, 2011 - 5:40 PM
- - 199celica   Might sound dumb but most cars do misfire under lo...   Aug 21, 2011 - 12:12 AM
- - hatchy_gt-s   Does your battery light always turn off when you a...   Aug 21, 2011 - 11:40 AM
- - 199celica   You kno i just got to talking to my girlfriend and...   Aug 21, 2011 - 12:21 PM
|- - hatchy_gt-s   QUOTE (199celica @ Aug 21, 2011 - 1...   Aug 21, 2011 - 5:09 PM
- - stephen_lee   actually this generation of engine DOES same small...   Aug 21, 2011 - 5:14 PM
|- - hatchy_gt-s   QUOTE (stephen_lee @ Aug 21, 2011 - 6...   Aug 21, 2011 - 5:25 PM
|- - samir0189   QUOTE (hatchy_gt-s @ Aug 21, 2011 ...   Aug 21, 2011 - 8:30 PM
|- - hatchy_gt-s   QUOTE (samir0189 @ Aug 21, 2011 - 9...   Aug 22, 2011 - 7:24 AM
- - stephen_lee   but pulling relays = no point   Aug 21, 2011 - 5:17 PM
- - stephen_lee   as stated, SMALL CHANGES in the fuel map. not huge...   Aug 21, 2011 - 8:24 PM
- - stephen_lee   and again, this doesnt sound like it will help in ...   Aug 21, 2011 - 8:29 PM
- - Scosh   Update: I changed my alternator( it was garbage),...   Aug 21, 2011 - 9:27 PM
|- - hatchy_gt-s   QUOTE (Scosh @ Aug 21, 2011 - 10:27 ...   Aug 22, 2011 - 7:29 AM
|- - stephen_lee   QUOTE (hatchy_gt-s @ Aug 22, 2011 ...   Aug 22, 2011 - 8:45 AM
- - stephen_lee   i would rather replace the spark plugs than clean ...   Aug 21, 2011 - 9:58 PM
- - Scosh   UPDATE: I have found my problem! It was my T...   Aug 27, 2011 - 3:55 PM
- - hatchy_gt-s   QUOTE (Scosh @ Aug 27, 2011 - 4:55 P...   Aug 28, 2011 - 7:12 PM


Reply to this topicStart new topic
8 User(s) are reading this topic (8 Guests and 0 Anonymous Users)
0 Members:

 



Lo-Fi Version Time is now: February 22nd, 2025 - 3:07 PM