What can cause a SSEi to be slow?
#1
Thread Starter
Senior Member
True Car Nut
Joined: Jul 2004
Posts: 7,545
Likes: 1
From: Twin Falls, Idaho
What can cause a SSEi to be slow?
I have replaced the following:
Spark Plugs
Plug Wires
MAF Sensor
O2 Sensor
Replaced fuel filter
K&N Intake
Cleaned the TB
Cleaned EGR Valve
Replaced PCV
Replaced cat with highflow magnaflow
Freshly Rebuilt Supercharger
However as you can see from the video my car is still slow, we are talking at least 9 seconds to get to 60.
http://cal48.com/mycarisslow.wmv
(right click save as, 6 megs)
LOOK how slow it is from 50-60, pretty sad.
Therefore I am trying to compile a list of what can be holding the car back without having a scantool.
The car runs perfect at idle, however the performance is still not quite normal.
- Exhuast Manifolds are cracked
- Failing Fuel Pump or FPR
- Vaccum Leaks
Spark Plugs
Plug Wires
MAF Sensor
O2 Sensor
Replaced fuel filter
K&N Intake
Cleaned the TB
Cleaned EGR Valve
Replaced PCV
Replaced cat with highflow magnaflow
Freshly Rebuilt Supercharger
However as you can see from the video my car is still slow, we are talking at least 9 seconds to get to 60.
http://cal48.com/mycarisslow.wmv
(right click save as, 6 megs)
LOOK how slow it is from 50-60, pretty sad.
Therefore I am trying to compile a list of what can be holding the car back without having a scantool.
The car runs perfect at idle, however the performance is still not quite normal.
- Exhuast Manifolds are cracked
- Failing Fuel Pump or FPR
- Vaccum Leaks
#2
Senior Member
Certified GM nut
Joined: Sep 2005
Posts: 2,009
Likes: 0
From: Home Sweet Home in New York
Hans, when I was having the same kinda problem (good idle, but **** poor performance), it turned out to be the TPS. Not something you can test without a scantool, but its something to consider.
#3
Thread Starter
Senior Member
True Car Nut
Joined: Jul 2004
Posts: 7,545
Likes: 1
From: Twin Falls, Idaho
Originally Posted by Mortehl
Hans, when I was having the same kinda problem (good idle, but **** poor performance), it turned out to be the TPS. Not something you can test without a scantool, but its something to consider.
#4
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Certified GM nut
Joined: Sep 2005
Posts: 2,009
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From: Home Sweet Home in New York
Originally Posted by Hans
Originally Posted by Mortehl
Hans, when I was having the same kinda problem (good idle, but **** poor performance), it turned out to be the TPS. Not something you can test without a scantool, but its something to consider.
#7
Back when I had a Capri, I had bracket on the throttle cable break in such a way that floored wasn't WOT at the TB. The bracket looked fine at Idle. That was tuff for one person to figure out, but I got it.
#8
Thread Starter
Senior Member
True Car Nut
Joined: Jul 2004
Posts: 7,545
Likes: 1
From: Twin Falls, Idaho
Originally Posted by vital49
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daman - I just replaced both belts with gatorbacks so I dont think that is the cause but could be..I am getting good boost though, probably around 8 or 9lbs. This is with the stock 2.5" pulley.
I am wondering perhaps if I have a bad fuel injector or 2.
My resistances on the coil packs are pretty close as well.