10-20-2009, 08:47 PM
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Somethine electrical wrong? Help please
The Z is a 94 M6 and I started having the problem a few days maybe weeks after we installed a new throttle body, vortex elbow, slp cai, 160 degree therm, and the manual fan switch. Well the problem is that when running at different times could be 5 min could be 30 sec after the car has started that the fans will both kick on hi and my SES light will turn on basically the same time everytime. Ive searched the forum have found people with a similar problem but i am having no luck.. I have tryed to check for codes but nobody can get my SES to flash. Any thoughts?
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 Daniel 1994 Medium Quasar Blue Z28 M6 SLP CIA, Vorex elbow, BBK 52mm TB, TB bypass, A/C delete, UMI Poly Motor Mounts, UMI Poly Trans Mount, SPEC 2+ Clutch, SPEC Al flywheel, LPP LT's, LPP ORY, Magnaflow Exhaust, Pro 5.0 w/short stick, UMI Subframe Connectors, Weight Reduction. est hp/tq 330/350
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10-20-2009, 08:51 PM
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Certain SES codes will cause the fans to run at high speed. I gotta go read up and see which ones they are.
If the SES light flashes while driving, it is telling you that the engine is misfiring.
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 ^^^ I HAVE THE COOLEST SIG ^^^ '97 Z28, A4, CAI w/K&N, Trick Flow Elbow,TB Bypass, Professional Products 58mm TB, 160*T-Stat, Man Fan Switch, MSD Digital 6 Ignition, MSD Blaster Coil, IONIZED PCM, Pacesetter LT headers, !EGR/AIR/CATS, Magnaflow catback, UMI LCA Relocation brackets, 3.23 rear end.
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10-20-2009, 09:06 PM
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the SES doesnt flash, once its turns on w/the fans it just stays on. When it all kicks on i feel like the motor boggs just a little and when at night u can see the lights dim.
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Daniel 1994 Medium Quasar Blue Z28 M6 SLP CIA, Vorex elbow, BBK 52mm TB, TB bypass, A/C delete, UMI Poly Motor Mounts, UMI Poly Trans Mount, SPEC 2+ Clutch, SPEC Al flywheel, LPP LT's, LPP ORY, Magnaflow Exhaust, Pro 5.0 w/short stick, UMI Subframe Connectors, Weight Reduction. est hp/tq 330/350
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10-20-2009, 09:07 PM
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Did you get the codes pulled with a code reader? It should have retained it into the memory.
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^^^ I HAVE THE COOLEST SIG ^^^ '97 Z28, A4, CAI w/K&N, Trick Flow Elbow,TB Bypass, Professional Products 58mm TB, 160*T-Stat, Man Fan Switch, MSD Digital 6 Ignition, MSD Blaster Coil, IONIZED PCM, Pacesetter LT headers, !EGR/AIR/CATS, Magnaflow catback, UMI LCA Relocation brackets, 3.23 rear end.
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10-20-2009, 09:10 PM
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it doesnt flash. and you cant read it like the old paper clip way. you have to use a scanner. and if you`ve done all those mods with out getting the pcm done then that might be way the mil light is coming on and the fans.
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 names Tom: 1994 camaro z28, LT1 383 stroker 10.5 to 1 compression,bored 30 over,motor balanced, blue printed, with Keith Black pistons, cleaves bearings, scat crank, balanced flex plate and balanced harmonic with 5 angle valve job, dual heavy duty valve springs, new valve guilds and steel oil pump drive with high volume oil pump,160* t stat, 488 cam, 8mm wires, 3.42 gear, 50`s all around, firm shift, pcmforless, p pump!, cats! amp 1 (500w) type R mono Apline, with 1 12" type R Alpine subwoofer.
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10-20-2009, 09:11 PM
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The lights will dim cause of the fan, but you need to have your alt checked as well. It should have more than enough power to run both fans on high. And you say that it feels like a loss of power, well you are right. When your ses comes on and your fans come on, the motor is going into a socalled "survive" mode. It will pull a crap load of timing and dump a crapload of fuel just incase it's lean. So, you are getting a lack of power.
Now, as for your problem, You just need to hook a code reader up to your car and get the codes. That will tell us exactly where to look. The SES light will cause the fans to come on, and may not have anything to do with what your problem is. When you say that it's almost always less than 5 minutes, that tells me that it's giving the code when the computer is going into closed loop from open loop. Everytime your car is started, the computer runs a self test, and if it finds anything wrong, then it wil set a code. So, get your codes read and let us know what it is.
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1996 Z28, OBD-I Conversion, SLP CAI, Hooker Super Comp Headers, Custom ORY, Custom Exhaust, 3.73's, It's Slow... For everyone asking about Gear RPO codes, here they are... Gu2 : Axle rear, 2.73 ratio, gu4 : Axle rear, 3.08 ratio, gu5 : Axle rear, 3.23 ratio, gu6 : Axle rear, 3.42 ratio Quote:
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10-20-2009, 09:19 PM
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You guys are awesome.. and yeah the paper clip way for some reason never pulled any codes... now where can i get the codes checked w/o buying a scanner?.. people tell me to go to auto zone and sorry if u are all fans but i hate auto zone (most the time) lol.. ive gone to auto zone with no luck on getting codes pulled.. dealer? will they charge to pull codes? and Everyone besides you Tony that i have talked to has said that im nuts about it losing any sort of power.. Glad i know how my car feels before and after..lol
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Daniel 1994 Medium Quasar Blue Z28 M6 SLP CIA, Vorex elbow, BBK 52mm TB, TB bypass, A/C delete, UMI Poly Motor Mounts, UMI Poly Trans Mount, SPEC 2+ Clutch, SPEC Al flywheel, LPP LT's, LPP ORY, Magnaflow Exhaust, Pro 5.0 w/short stick, UMI Subframe Connectors, Weight Reduction. est hp/tq 330/350
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10-20-2009, 09:19 PM
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Most local auto parts stores will read the codes for free.
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^^^ I HAVE THE COOLEST SIG ^^^ '97 Z28, A4, CAI w/K&N, Trick Flow Elbow,TB Bypass, Professional Products 58mm TB, 160*T-Stat, Man Fan Switch, MSD Digital 6 Ignition, MSD Blaster Coil, IONIZED PCM, Pacesetter LT headers, !EGR/AIR/CATS, Magnaflow catback, UMI LCA Relocation brackets, 3.23 rear end.
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10-20-2009, 09:20 PM
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I want to say everytime i have gone to autozone they have only had the stuff for the paperclip code puller lol
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Daniel 1994 Medium Quasar Blue Z28 M6 SLP CIA, Vorex elbow, BBK 52mm TB, TB bypass, A/C delete, UMI Poly Motor Mounts, UMI Poly Trans Mount, SPEC 2+ Clutch, SPEC Al flywheel, LPP LT's, LPP ORY, Magnaflow Exhaust, Pro 5.0 w/short stick, UMI Subframe Connectors, Weight Reduction. est hp/tq 330/350
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10-20-2009, 09:27 PM
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Yup, AZ will want to "flash" your codes and the last year that you can do that is 93. Yours requires a reader, and most people will say that there is no reader. I know for a fact that there is, cause I used to have one lol. If you have a laptop, then we can point you in the direction to get a cable and you can do a lot more than just "read" the codes. You can datalog the car while you are driving and it will tell you exactly what all the sensors are doing. You can go to the dealer, but they may charge you for pulling them. Some around here have a 1 hour min that they charge, and a lot of them are charging $65+ per hour.
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1996 Z28, OBD-I Conversion, SLP CAI, Hooker Super Comp Headers, Custom ORY, Custom Exhaust, 3.73's, It's Slow... For everyone asking about Gear RPO codes, here they are... Gu2 : Axle rear, 2.73 ratio, gu4 : Axle rear, 3.08 ratio, gu5 : Axle rear, 3.23 ratio, gu6 : Axle rear, 3.42 ratio Quote:
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10-20-2009, 09:28 PM
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also should have added that fuel milage has gone out the door too...on the highway was around 30mpg and in the city it was above 20 now.. it has dropped to around 23 highway.. and from what Tony has said about it pulling timing dumping fuel and running lean... alot of fuel odor with all this..
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Daniel 1994 Medium Quasar Blue Z28 M6 SLP CIA, Vorex elbow, BBK 52mm TB, TB bypass, A/C delete, UMI Poly Motor Mounts, UMI Poly Trans Mount, SPEC 2+ Clutch, SPEC Al flywheel, LPP LT's, LPP ORY, Magnaflow Exhaust, Pro 5.0 w/short stick, UMI Subframe Connectors, Weight Reduction. est hp/tq 330/350
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10-20-2009, 09:29 PM
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Great Tony where can i get a scanner?.. a good one..
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Daniel 1994 Medium Quasar Blue Z28 M6 SLP CIA, Vorex elbow, BBK 52mm TB, TB bypass, A/C delete, UMI Poly Motor Mounts, UMI Poly Trans Mount, SPEC 2+ Clutch, SPEC Al flywheel, LPP LT's, LPP ORY, Magnaflow Exhaust, Pro 5.0 w/short stick, UMI Subframe Connectors, Weight Reduction. est hp/tq 330/350
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10-20-2009, 09:31 PM
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Not dumping fuel and running lean, but dumping fuel just incase it's running lean. All the computer knows is that there is a problem, so it's going to do what it can to save the motor. But yes, it will cause your MPG to go down. But, holy crap, 30mpg with a 94 LT1, that is good...
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1996 Z28, OBD-I Conversion, SLP CAI, Hooker Super Comp Headers, Custom ORY, Custom Exhaust, 3.73's, It's Slow... For everyone asking about Gear RPO codes, here they are... Gu2 : Axle rear, 2.73 ratio, gu4 : Axle rear, 3.08 ratio, gu5 : Axle rear, 3.23 ratio, gu6 : Axle rear, 3.42 ratio Quote:
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10-20-2009, 09:33 PM
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You can get a scanner from any autoparts store. But, they are going to run you about $40-$300 depending on how good of one you get. So, if you want to get someting like that, I would suggest the cable for a laptop if you have one. Or, you can hook it up with a desktop out in the garage if you have an extra one.
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1996 Z28, OBD-I Conversion, SLP CAI, Hooker Super Comp Headers, Custom ORY, Custom Exhaust, 3.73's, It's Slow... For everyone asking about Gear RPO codes, here they are... Gu2 : Axle rear, 2.73 ratio, gu4 : Axle rear, 3.08 ratio, gu5 : Axle rear, 3.23 ratio, gu6 : Axle rear, 3.42 ratio Quote:
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10-20-2009, 09:36 PM
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Sorry Tony that was my bad.. trying to do chem, stat, and calc at the same time lol... but yeah she was a missle on the highway.. ive done many gas tank to gas tank road trips out to nebraska so its all open and flat.. i would like to get that back.. but im about to do 4.10 gears soo.. i guess i should just not ever think of it as a good gas milage v8 car anymore lol
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Daniel 1994 Medium Quasar Blue Z28 M6 SLP CIA, Vorex elbow, BBK 52mm TB, TB bypass, A/C delete, UMI Poly Motor Mounts, UMI Poly Trans Mount, SPEC 2+ Clutch, SPEC Al flywheel, LPP LT's, LPP ORY, Magnaflow Exhaust, Pro 5.0 w/short stick, UMI Subframe Connectors, Weight Reduction. est hp/tq 330/350
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