Fuel Running very rich after installation of Pettit ECU
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From: Salem MA
Fuel Running very rich after installation of Pettit ECU
Anyone else having this problem...just curious because i love the way the car is running. Now maybe if i yank my cats i can shoot flames!! 
hehe
hehe
Thread Starter
Senior Member
Joined: Mar 2001
Posts: 279
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From: Salem MA
Street Ported w/3mm seals
N-Tech Downpipe
PFS Cat-back
M2 Trailing Arms
M2 Control Arms
Pettit Cool Charge II Intercooler
N-Tech Cold Air Intake
N-Tech BMK
Pettit Unlimited ECU
Greddy Profec B
Silicon Vacuum Lines
PFS Boost Gauge
M2 Willwood Big Brake Kit
Reduced Ratio 5th Gear
Pettit Short Shifter
M2 30% Stiffer Pressure Plate
M2 AST Elimination
M2 Competition Radiator
Magnecore 10mm Wires
Bonez High Flow Cat
Greddy Pulley Kit
Enfini Y Pipe
Unobtainium Bushings
and thats it... dont know why im running so rich... is there a way i can tone it down a bit
N-Tech Downpipe
PFS Cat-back
M2 Trailing Arms
M2 Control Arms
Pettit Cool Charge II Intercooler
N-Tech Cold Air Intake
N-Tech BMK
Pettit Unlimited ECU
Greddy Profec B
Silicon Vacuum Lines
PFS Boost Gauge
M2 Willwood Big Brake Kit
Reduced Ratio 5th Gear
Pettit Short Shifter
M2 30% Stiffer Pressure Plate
M2 AST Elimination
M2 Competition Radiator
Magnecore 10mm Wires
Bonez High Flow Cat
Greddy Pulley Kit
Enfini Y Pipe
Unobtainium Bushings
and thats it... dont know why im running so rich... is there a way i can tone it down a bit
Rotary Enthusiast
Joined: Dec 2001
Posts: 1,209
Likes: 6
From: Delaware
These guys said they will mod the maps on an upgraded oem ecu for $150.
http://www.technosquareinc.com/dealer.htm
Woud be best to have some wide band dyno runs 1st.
I think both pettit upgrades are same, except the unlimited boost in the one.
http://www.technosquareinc.com/dealer.htm
Woud be best to have some wide band dyno runs 1st.
I think both pettit upgrades are same, except the unlimited boost in the one.
Thread Starter
Senior Member
Joined: Mar 2001
Posts: 279
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From: Salem MA
Havnt really monitored it in any way just yet.. but it smokes at start up, its got that stench to it a bit when i drive it. The tip of my Cat-back is black after like a week of driving, Its got a bit of backfire a bit too..but i think thats the Cat, I think i need a new one. You think maybe an ApexAFC would be a good investment?
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Originally posted by RotorMotorRX7
Havnt really monitored it in any way just yet.. but it smokes at start up, its got that stench to it a bit when i drive it. The tip of my Cat-back is black after like a week of driving, Its got a bit of backfire a bit too..but i think thats the Cat, I think i need a new one. You think maybe an ApexAFC would be a good investment?
Havnt really monitored it in any way just yet.. but it smokes at start up, its got that stench to it a bit when i drive it. The tip of my Cat-back is black after like a week of driving, Its got a bit of backfire a bit too..but i think thats the Cat, I think i need a new one. You think maybe an ApexAFC would be a good investment?
For me though, my car used to backfire a lot and smoke quite a bit when first starting up. I had a gas odor problem that I was fixing, so while I had everything apart I also cleaned out my UIM and throttle body with some carb cleaner.
I was also replacing my spark plug wires at the time and found out that one of my leading coil wires had fused itself into the coil. I replaced the leading coil and then used dielectrical grease on both ends of the spark plug wire connections when I put them on.
Now, my car almost never backfires and there is barely a puff of smoke at start up.
Also, when as the last time you changed your spark plugs or O2 sensor?
Thread Starter
Senior Member
Joined: Mar 2001
Posts: 279
Likes: 0
From: Salem MA
Originally posted by Mahjik
Sounds about normal. As I said, you'll run richer with the Pettit ECU.
For me though, my car used to backfire a lot and smoke quite a bit when first starting up. I had a gas odor problem that I was fixing, so while I had everything apart I also cleaned out my UIM and throttle body with some carb cleaner.
I was also replacing my spark plug wires at the time and found out that one of my leading coil wires had fused itself into the coil. I replaced the leading coil and then used dielectrical grease on both ends of the spark plug wire connections when I put them on.
Now, my car almost never backfires and there is barely a puff of smoke at start up.
Also, when as the last time you changed your spark plugs or O2 sensor?
Sounds about normal. As I said, you'll run richer with the Pettit ECU.
For me though, my car used to backfire a lot and smoke quite a bit when first starting up. I had a gas odor problem that I was fixing, so while I had everything apart I also cleaned out my UIM and throttle body with some carb cleaner.
I was also replacing my spark plug wires at the time and found out that one of my leading coil wires had fused itself into the coil. I replaced the leading coil and then used dielectrical grease on both ends of the spark plug wire connections when I put them on.
Now, my car almost never backfires and there is barely a puff of smoke at start up.
Also, when as the last time you changed your spark plugs or O2 sensor?
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