DRM EPROM chip any issues? - ZR-1 Net Registry Forums

White Bullet · 05-25-2008

I was checking the clutch fluid and decided to look to see if the eprom was stock. Upon inspection I found that a DRM eprom is installed. I am wondering if this could be reason I am experiencing some strange happenings. Such as the coolant low level light does not operate at startup for test. I thought it might be the bulb so I replaced it and still no work. I disconnected the sensor at the surge tank and nothing. Maybe its wires? Also the ABS system acts strange. I should see the ABS active when first rolling the car but sometime it does not activate until much later.

Anyone with a DRM chip? Whats your experience?

I have posted in the items wanted for a stock chip. Want to see if this makes this issues go away. Thanks.

jonszr1 · 05-25-2008

i dont believe the prom has anything to do with those items . you could call drm on tues to find out for sure

White Bullet · 05-25-2008

I did not think so. I figure the ABS is related to one of the wheel sensors and the low coolant is still a mystery. Thanks.

XfireZ51 · 05-25-2008

WB,

Lgaff has a DRM chip in his.

blackjack · 06-03-2008

wiewei
you sell fridges to eskimos?
bj

GOLDCYLON · 06-03-2008

Quote:

Originally Posted by White Bullet

I was checking the clutch fluid and decided to look to see if the eprom was stock. Upon inspection I found that a DRM eprom is installed. I am wondering if this could be reason I am experiencing some strange happenings. Such as the coolant low level light does not operate at startup for test. I thought it might be the bulb so I replaced it and still no work. I disconnected the sensor at the surge tank and nothing. Maybe its wires? Also the ABS system acts strange. I should see the ABS active when first rolling the car but sometime it does not activate until much later.

Anyone with a DRM chip? Whats your experience?

I have posted in the items wanted for a stock chip. Want to see if this makes this issues go away. Thanks.

I have a DRM chip and zero issues. What you describe has nothing to do with the chip. The ABS light on every ZR-1 flickers after backing the car and beginning to roll forward this is normal as the ABS is going through a self check. The ABS also growls during this period which is a normal healthy action. The ABS light will come on also if you are slowig down and hit an uneven surface such as a pot hole or uneveness in the roadway again normal operation. I have never seen the coolant low light come on in my car now I have another area to look at lol. GC

White Bullet · 06-03-2008

GOLDCYLON thanks for the reply. The thing about it is sometimes the ABS active light will engage as the car first moves and other times it will be minutes before flashing. The Service ABS warning lights at first startup and then goes off. This indicates that the system is working. That is why I think it maybe a wheel sensor. Who knows at this point I have other fish to fry as I have a new radiator ordered and will have to install it. In regards to the low coolant light I have found conflicting information on this matter. There is some information that I have found that states that the low coolant light will not operate unless there is a sensed low level. However this contradicts the owners manual that states the low coolant light should show at start up so that you know the warning system is working. Again who knows as I can not find any information on this and will research it when I get the factory service manuals

.

GOLDCYLON · 06-03-2008

Quote:

Originally Posted by White Bullet

GOLDCYLON thanks for the reply. The thing about it is sometimes the ABS active light will engage as the car first moves and other times it will be minutes before flashing. The Service ABS warning lights at first startup and then goes off. This indicates that the system is working. That is why I think it maybe a wheel sensor. Who knows at this point I have other fish to fry as I have a new radiator ordered and will have to install it. In regards to the low coolant light I have found conflicting information on this matter. There is some information that I have found that states that the low coolant light will not operate unless there is a sensed low level. However this contradicts the owners manual that states the low coolant light should show at start up so that you know the warning system is working. Again who knows as I can not find any information on this and will research it when I get the factory service manuals

.

Hmm you may have a suspect wheel sensor have you pulled any codes using the paperclip method?

GOLDCYLON · 06-04-2008

WB another followup I have looked at the Drivers Information Center for three straight days no in my DD looking for a low coolant light to come on during the self check portion before start up. So on my 91 I have to say nada. Also did you pull any codes yet? GC

White Bullet · 06-05-2008

GOLDCYLON I am beginning to think it will not light unless there is a low coolant level sensed. I will check it out when I replace the radiator. As for checking the codes it will be this weekend before I will have that opportunity as I am out of town right now. I will let you know what I find.

05-25-2008	#1
White Bullet Join Date: Apr 2008 Location: Gainesville GA Posts: 232	DRM EPROM chip any issues? I was checking the clutch fluid and decided to look to see if the eprom was stock. Upon inspection I found that a DRM eprom is installed. I am wondering if this could be reason I am experiencing some strange happenings. Such as the coolant low level light does not operate at startup for test. I thought it might be the bulb so I replaced it and still no work. I disconnected the sensor at the surge tank and nothing. Maybe its wires? Also the ABS system acts strange. I should see the ABS active when first rolling the car but sometime it does not activate until much later. Anyone with a DRM chip? Whats your experience? I have posted in the items wanted for a stock chip. Want to see if this makes this issues go away. Thanks. __________________ 1991 ZR1, White/Red.

05-25-2008	#2
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: DRM EPROM chip any issues? i dont believe the prom has anything to do with those items . you could call drm on tues to find out for sure

05-25-2008	#3
White Bullet Join Date: Apr 2008 Location: Gainesville GA Posts: 232	Re: DRM EPROM chip any issues? I did not think so. I figure the ABS is related to one of the wheel sensors and the low coolant is still a mystery. Thanks. __________________ 1991 ZR1, White/Red.

05-25-2008	#4
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,666	Re: DRM EPROM chip any issues? WB, Lgaff has a DRM chip in his.

06-03-2008	#5
blackjack Join Date: Aug 2005 Location: north of montreal Posts: 512	Re: DRM EPROM chip any issues? wiewei you sell fridges to eskimos? bj

06-03-2008	#7
White Bullet Join Date: Apr 2008 Location: Gainesville GA Posts: 232	Re: DRM EPROM chip any issues? GOLDCYLON thanks for the reply. The thing about it is sometimes the ABS active light will engage as the car first moves and other times it will be minutes before flashing. The Service ABS warning lights at first startup and then goes off. This indicates that the system is working. That is why I think it maybe a wheel sensor. Who knows at this point I have other fish to fry as I have a new radiator ordered and will have to install it. In regards to the low coolant light I have found conflicting information on this matter. There is some information that I have found that states that the low coolant light will not operate unless there is a sensed low level. However this contradicts the owners manual that states the low coolant light should show at start up so that you know the warning system is working. Again who knows as I can not find any information on this and will research it when I get the factory service manuals . __________________ 1991 ZR1, White/Red.

06-04-2008	#9
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,153	Re: DRM EPROM chip any issues? WB another followup I have looked at the Drivers Information Center for three straight days no in my DD looking for a low coolant light to come on during the self check portion before start up. So on my 91 I have to say nada. Also did you pull any codes yet? GC __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

06-05-2008	#10
White Bullet Join Date: Apr 2008 Location: Gainesville GA Posts: 232	Re: DRM EPROM chip any issues? GOLDCYLON I am beginning to think it will not light unless there is a low coolant level sensed. I will check it out when I replace the radiator. As for checking the codes it will be this weekend before I will have that opportunity as I am out of town right now. I will let you know what I find. __________________ 1991 ZR1, White/Red.