bad mpg why?
Registered User
Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
Your fuel filter may be clogged but it isn't causing your poor fuel economy. To change it:
1)Relieve the fuel pressure in the system. I told you how to do that before.
2) Jack up the rear of the car.
3) Crawl under and locate the fuel filter....it's on the inside of the frame rails and has a fuel line running in one side and out the other.
4) Armed with the right tools, some rags and a drip pan, simply remove and replace..it's pretty self evident how to do it....
Good Luck!
Your excess fuel consumption problem is something pretty big. In previous posts you mentioned raw gas smells, gas in the oil and blowby puffing out the oil filler cap. Now you're using about 40% more fuel than you think is right. I would think you have a bunch-o-black-smoke coming out the back of the car and that your O2 sensors are shot.
1)Relieve the fuel pressure in the system. I told you how to do that before.
2) Jack up the rear of the car.
3) Crawl under and locate the fuel filter....it's on the inside of the frame rails and has a fuel line running in one side and out the other.
4) Armed with the right tools, some rags and a drip pan, simply remove and replace..it's pretty self evident how to do it....
Good Luck!
Your excess fuel consumption problem is something pretty big. In previous posts you mentioned raw gas smells, gas in the oil and blowby puffing out the oil filler cap. Now you're using about 40% more fuel than you think is right. I would think you have a bunch-o-black-smoke coming out the back of the car and that your O2 sensors are shot.
Thread Starter
Registered User
Joined: May 2009
Posts: 175
Your fuel filter may be clogged but it isn't causing your poor fuel economy. To change it:
1)Relieve the fuel pressure in the system. I told you how to do that before.
2) Jack up the rear of the car.
3) Crawl under and locate the fuel filter....it's on the inside of the frame rails and has a fuel line running in one side and out the other.
4) Armed with the right tools, some rags and a drip pan, simply remove and replace..it's pretty self evident how to do it....
Good Luck!
Your excess fuel consumption problem is something pretty big. In previous posts you mentioned raw gas smells, gas in the oil and blowby puffing out the oil filler cap. Now you're using about 40% more fuel than you think is right. I would think you have a bunch-o-black-smoke coming out the back of the car and that your O2 sensors are shot.
1)Relieve the fuel pressure in the system. I told you how to do that before.
2) Jack up the rear of the car.
3) Crawl under and locate the fuel filter....it's on the inside of the frame rails and has a fuel line running in one side and out the other.
4) Armed with the right tools, some rags and a drip pan, simply remove and replace..it's pretty self evident how to do it....
Good Luck!
Your excess fuel consumption problem is something pretty big. In previous posts you mentioned raw gas smells, gas in the oil and blowby puffing out the oil filler cap. Now you're using about 40% more fuel than you think is right. I would think you have a bunch-o-black-smoke coming out the back of the car and that your O2 sensors are shot.
Registered User
Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
i do have varry little black smoke out the rear but the blow by and smoke out the oil fill tube is gone. i think that the car needs tuned it has all the stuff done and no tune, but i cant find anyone in tampa area that can tune it. i know the guy that did the dyno said that it was real lean but i dont see how lol he could not even give me a good tq reading.
Thread Starter
Registered User
Joined: May 2009
Posts: 175
Registered User
Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
Thread Starter
Registered User
Joined: May 2009
Posts: 175
bw hunter i fond the link and i bought this motor out of a 94 car and put it in my 93 maybe this is the problem, just read this about the cam i have in.
Crane Cams PowerMax 2033 Camshaft (1994-1997 LT1)
Crane Cams PowerMax 2033 Camshaft (1994-1997 LT1) [104227] $285.95 1.42975 Points Currently Valued at $1.43 FOR 94 AND LATER ALUMINUM HEAD EQUIPPED LT1 CAMAROS, FIREBIRDS AND CORVETTES. WORKS IN STOCK AND MILD MODIFIED ENGINES. BOOSTS MID AND TOP END WITHOUT LOW END LOSS. USE 10758-16 1.6 RATIO ROCKER ARMS FOR MORE POWER. NOT FOR USE W/STOCK SPRINGS. FOR MASS AIR F.I. ONLY. BASIC RPM 2000-6000 Year: 1994-1996 Corvette LT1, LT4 & LT5 1994-1997 Camaro & Firebird LT1 Tuesday 21 October, 2003.
look where it says for mass air fi only what dose that mean, i ont have the mass air like the .
Crane Cams PowerMax 2033 Camshaft (1994-1997 LT1)
Crane Cams PowerMax 2033 Camshaft (1994-1997 LT1) [104227] $285.95 1.42975 Points Currently Valued at $1.43 FOR 94 AND LATER ALUMINUM HEAD EQUIPPED LT1 CAMAROS, FIREBIRDS AND CORVETTES. WORKS IN STOCK AND MILD MODIFIED ENGINES. BOOSTS MID AND TOP END WITHOUT LOW END LOSS. USE 10758-16 1.6 RATIO ROCKER ARMS FOR MORE POWER. NOT FOR USE W/STOCK SPRINGS. FOR MASS AIR F.I. ONLY. BASIC RPM 2000-6000 Year: 1994-1996 Corvette LT1, LT4 & LT5 1994-1997 Camaro & Firebird LT1 Tuesday 21 October, 2003.
look where it says for mass air fi only what dose that mean, i ont have the mass air like the .
Thread Starter
Registered User
Joined: May 2009
Posts: 175
that's similar to the LT4 hot cam specs. I'll be one of the aftermarket tuners could do a mail order tune for you. Have you ever heard of www.pcmforless.com?
Registered User
Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
Thread Starter
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Joined: May 2009
Posts: 175
2 things who is brian and how do i contact him, and my fpr has 2 nipples out of it only the one on the bottom has a hose on it are they both in need of a hos or just the one
Registered User
Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
My FPR only has one vacuum line connection point. It looks just like this one:
http://shbox.com/1/fp_reg.jpg .
You may have an adjustable FPR. Are you sure one of those nipples isn't a screw?
Thread Starter
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Joined: May 2009
Posts: 175
something i did not ask is that by the car running rich or lean could that be getting gas where it should not be. and maybe wash out the cylinders and cause blow by. and i still cant get to the bottom of the miss it dont do it all the time so i can only think that wot it is spiting oil all over things and then gets the miss. but cant see where the oil is comming form.
Registered User
Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
Registered User
Joined: Jul 2002
Posts: 1,942
From: Kissimmee, Fl, USA
something i did not ask is that by the car running rich or lean could that be getting gas where it should not be. and maybe wash out the cylinders and cause blow by. and i still cant get to the bottom of the miss it dont do it all the time so i can only think that wot it is spiting oil all over things and then gets the miss. but cant see where the oil is comming form.
An intermittant miss is hard to diagnose and is a symptom of a bad optispark,,,along with other things. Try to fix the oil leak, test and/or repalce the O2 sensors and then we'll help you diagnose the remaining issues.
Good luck!
Thread Starter
Registered User
Joined: May 2009
Posts: 175
I don't see how that's possible. If the injectors were to fire at the wrong time you'd just have fuel hitting closed valves...which is what you already have with the batch fire system on the 93's. Unless your injectors are way bigger than stock and/or your O2 sensors are shot, you're dumping the right amount of fuel at a close enough time to run right.
An intermittant miss is hard to diagnose and is a symptom of a bad optispark,,,along with other things. Try to fix the oil leak, test and/or repalce the O2 sensors and then we'll help you diagnose the remaining issues.
Good luck!
An intermittant miss is hard to diagnose and is a symptom of a bad optispark,,,along with other things. Try to fix the oil leak, test and/or repalce the O2 sensors and then we'll help you diagnose the remaining issues.
Good luck!