engine noise/running pretty rich
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engine noise/running pretty rich
ok my issue is this, i have a bit of a knock but it sounds like an injector and the motor is running very rich, i have a 93 mx3 1.8 v6, i just bought it and dont know much about these cars, I love it though and would like to fix this issue, how hard is it to replace a injector in these motors?
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- mitmaks
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Re: engine noise/running pretty rich
How do you know motor is running rich?
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Re: engine noise/running pretty rich
because it smells distinctly like fuel when running, yet there is no leaks. and its almost like steaming out of the exhaust but no raw fuel comes out. Also i guess this would be a good point to note, is that theres NO codes flashing and or engine warning lights goin off, its just burning fuel faster than usual and that "knock" i mentioned sounds like a injector problem i had with a civic in the past, i just dont want to get into a mess if the injectors are a pain in the a-- to change.
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- mitmaks
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Re: engine noise/running pretty rich
"knock" noise might be lifter. These engines are notorious for HLA noise
Magnum s/s lines, strut bars, carbon fiber bezel, indiglow gauge, Sony Xplod, inverted c/f hood, SRD lower tie bar '93 GS SE '95 Cobra SVT #2722 '68 Charger R/T 440
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Re: engine noise/running pretty rich
yeah? hmm so what change to synthetic? maybe some lucas to raise the pressure to make sure oils gettin up there? the other reason i think the knock is a injector is because now its missing a bit. and the noise is comin from the center of the rear head. its not a loud knock its more like ambient.
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- _-Night-Shade-_
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Re: engine noise/running pretty rich
I've never heard of injectors making a knocking noise. Where are you smelling it? It might be an exhaust leak or the evap isn't working properly.
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Re: engine noise/running pretty rich
I can only smell the fuel comin out of the back of the car. And I've heard the same engine noise from a blown Injector. The car sat for 3 years so I'm gonna change the oil and spark plugs see if that helps. I appreciate the advice guys.
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Re: engine noise/running pretty rich
i have the same problem on my 1.6 4 banger...... you put ur had to the exhaust and you can feel gas vapor, the motor ticks, and itll get a burble like a miss every once and a while.... id like to discover whats wrong too
- newdriver92
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Re: engine noise/running pretty rich
i to have the same issue
worklog viewtopic.php?f=46&t=77147
other pics of the adventures me and the car have been on http://s1082.photobucket.com/home/newdriver92/index
other pics of the adventures me and the car have been on http://s1082.photobucket.com/home/newdriver92/index
- MrMazda92
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Re: engine noise/running pretty rich
For running rich, there aren't really any surefire ways to test without actual sensors, but for the guys with chrome exhaust tips can look for carbon deposits. They will reduce your shiny exhaust to a dark, sooty color.
Daily:
'12 Challenger R/T + STP - 3.92 w/ LSD, JG Cam, headers, SkipShift delete, Clutch Delay Valve delete, Hurst STS, RAM Clutch Adjuster, StopTech 6 Piston Brakes, Sticky Nittos, 435 WHP
Kid Hauler:
'08 Suburban LT 4WD - TVS 1900 Blower, LF SC Cam, headers, AFM delete, true 5" lift, 33x12s, 523 WHP
First Love:
'92 GS 5 spd - Straightneck KL/67mm TB, MegaSquirt/Coilpacks, 5 lugs/Speed6 brakes/FD wheels, wiretuck, coilovers, headers, AEM WB, Borla
Deleted: VAF/Power Steering/Air Conditioning/EGR/ABS/Auto Seatbelts/etc
'12 Challenger R/T + STP - 3.92 w/ LSD, JG Cam, headers, SkipShift delete, Clutch Delay Valve delete, Hurst STS, RAM Clutch Adjuster, StopTech 6 Piston Brakes, Sticky Nittos, 435 WHP
Kid Hauler:
'08 Suburban LT 4WD - TVS 1900 Blower, LF SC Cam, headers, AFM delete, true 5" lift, 33x12s, 523 WHP
First Love:
'92 GS 5 spd - Straightneck KL/67mm TB, MegaSquirt/Coilpacks, 5 lugs/Speed6 brakes/FD wheels, wiretuck, coilovers, headers, AEM WB, Borla
Deleted: VAF/Power Steering/Air Conditioning/EGR/ABS/Auto Seatbelts/etc
- mitmaks
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Re: engine noise/running pretty rich
you can pull spark plugs and see if your car is running rich/lean.
Magnum s/s lines, strut bars, carbon fiber bezel, indiglow gauge, Sony Xplod, inverted c/f hood, SRD lower tie bar '93 GS SE '95 Cobra SVT #2722 '68 Charger R/T 440
http://www.cardomain.com/id/mitmaks
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- MrMazda92
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Re: engine noise/running pretty rich
Or you could do that! *Facepalm*mitmaks wrote:you can pull spark plugs and see if your car is running rich/lean.
Daily:
'12 Challenger R/T + STP - 3.92 w/ LSD, JG Cam, headers, SkipShift delete, Clutch Delay Valve delete, Hurst STS, RAM Clutch Adjuster, StopTech 6 Piston Brakes, Sticky Nittos, 435 WHP
Kid Hauler:
'08 Suburban LT 4WD - TVS 1900 Blower, LF SC Cam, headers, AFM delete, true 5" lift, 33x12s, 523 WHP
First Love:
'92 GS 5 spd - Straightneck KL/67mm TB, MegaSquirt/Coilpacks, 5 lugs/Speed6 brakes/FD wheels, wiretuck, coilovers, headers, AEM WB, Borla
Deleted: VAF/Power Steering/Air Conditioning/EGR/ABS/Auto Seatbelts/etc
'12 Challenger R/T + STP - 3.92 w/ LSD, JG Cam, headers, SkipShift delete, Clutch Delay Valve delete, Hurst STS, RAM Clutch Adjuster, StopTech 6 Piston Brakes, Sticky Nittos, 435 WHP
Kid Hauler:
'08 Suburban LT 4WD - TVS 1900 Blower, LF SC Cam, headers, AFM delete, true 5" lift, 33x12s, 523 WHP
First Love:
'92 GS 5 spd - Straightneck KL/67mm TB, MegaSquirt/Coilpacks, 5 lugs/Speed6 brakes/FD wheels, wiretuck, coilovers, headers, AEM WB, Borla
Deleted: VAF/Power Steering/Air Conditioning/EGR/ABS/Auto Seatbelts/etc
- mikeetown
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Re: engine noise/running pretty rich
this is where i would start. Plugs tell you everything. Is it possible to post a good youtube video of this??? I think i know what the knock might be.....mitmaks wrote:you can pull spark plugs and see if your car is running rich/lean.
Does this car still have an EGR valve??
It sounds like a weird question but when i got the k8-ze, at idle it wont stop making a popping but i have a good running engine for sure. K8-ZE = no EGR because its a jap K8.
mikeetown
93 Black GS - J-spec KLDE, CLEAN CAR
92 Red GS - J-spec K8ZE, stripped interior - Written off
2004 Infinity G35 Track Edition - 6 speed manual
viewtopic.php?f=17&t=79142
93 Black GS - J-spec KLDE, CLEAN CAR
92 Red GS - J-spec K8ZE, stripped interior - Written off
2004 Infinity G35 Track Edition - 6 speed manual
viewtopic.php?f=17&t=79142
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Re: engine noise/running pretty rich
my car has the same problem. one of the plugs had gas on it whats this caused by?