Running rich....please guide me to a fix
Thread Starter
Junior Member
Joined: Apr 2002
Posts: 43
Likes: 0
From: NH
Car: 88 I-ROC
Engine: 355 TPI
Transmission: BW T5
Running rich....please guide me to a fix
Hello all...own a 89 (not 88..sorry) 350 TPI...starts up fine..idles fine..no codes present or stored currently...as she warms up...dark colored smoke..even has a slight bluish tint to it starts to flow out exhaust..my eyes start to burn..and the smell of "RICH" is all I can smell.looking for help in a diag sequence to solve this problem,The O2 is 6 months old..I R&R'd it for regular maintenance..she has been running fine up to now untill this rich issue.I want to know from you people ...before I dig myself a diag holeI can't get out of.
thanks for your time guys.
Brent Rndsout@comcast.net
If you need more info.....fire away...I would really like to solve this,and learn @ the same time.
thanks for your time guys.
Brent Rndsout@comcast.net
If you need more info.....fire away...I would really like to solve this,and learn @ the same time.
Thread Starter
Junior Member
Joined: Apr 2002
Posts: 43
Likes: 0
From: NH
Car: 88 I-ROC
Engine: 355 TPI
Transmission: BW T5
Hey guys..thanks for getting back to me.
Well I found the problem,but its not the valve seals,they are new.A bad MAF "power" relay,kinda wierd seeing how it didn't set a code.Must have caught it early enough I guess.So I found out that a bad MAF power relay would cause a massive rich condition..so I checked to see if the power relay was energizing...NADA....the burn-off relay was working,but I replaced both instead.Car runs great now..no stinkin ..eye burning..rich running issue.
I do have one more question if you people have the time.
I have installed a Lunati cam.. 0.469int 0.489ex
206int 215ex @ 0.50 now the cam card tells me that if cam is installed @ TDC...the cam will be 4' advanced.Now my vehicle runs awesome,I have set the initial timeing @ 8' on the balancer which I'm wondering if thats too much seeing how the cam is already 4' installed straight up(TDC)which would make a grand total of 12'..is this correct???? I mean..am I makeing sense here??.What would you guys set the timeing in this situation.
Thanks again guys
Brent
Well I found the problem,but its not the valve seals,they are new.A bad MAF "power" relay,kinda wierd seeing how it didn't set a code.Must have caught it early enough I guess.So I found out that a bad MAF power relay would cause a massive rich condition..so I checked to see if the power relay was energizing...NADA....the burn-off relay was working,but I replaced both instead.Car runs great now..no stinkin ..eye burning..rich running issue.
I do have one more question if you people have the time.I have installed a Lunati cam.. 0.469int 0.489ex
206int 215ex @ 0.50 now the cam card tells me that if cam is installed @ TDC...the cam will be 4' advanced.Now my vehicle runs awesome,I have set the initial timeing @ 8' on the balancer which I'm wondering if thats too much seeing how the cam is already 4' installed straight up(TDC)which would make a grand total of 12'..is this correct???? I mean..am I makeing sense here??.What would you guys set the timeing in this situation.
Thanks again guys
Brent
Junior Member
Joined: Sep 2005
Posts: 61
Likes: 0
From: Troy, NC
Car: 1987 Z28
Engine: 350 (357ci)
Transmission: 700r4
Axle/Gears: 3.42 posi
I run my base timeing at 14* Im not an expert and if Im wrong someone will point it out, but as long as you dont have knock at 12* you will be ok. My friend has a 71 camaro and runs his base at 16*
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
Mar 5, 2017 06:37 PM
86IROC112
Engine/Drivetrain/Suspension Parts for Sale
4
Aug 17, 2015 02:00 PM
db057
TBI
10
Aug 11, 2015 10:11 PM





