need prom/memcal help
12-10-2007, 10:39 AM
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need prom/memcal help
Hi folks I have another thead 1990 won't start...I think I have my problem narrowed down to prom/memcal..does anyone have a resource for reprogramming or replacing prom/memcal..also can anyone provide me with numbers on the memcal, just to compare with mine..I have a 1990!! Thanks
12-10-2007, 11:18 AM
#2
Race Director
12-10-2007, 11:56 AM
#4
Race Director
No prob. What are the symptoms? The PROM is rarely bad, I recently had a bad ECM though.
12-10-2007, 01:01 PM
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Symptoms are:
Black smoke/rich
detonates.....no errors
I put in
new ecm, injectors ,cap/ rotor,temp cont sensor, o2 sensor, fuel/fuel filter .
noticed tach only revving to 2500 but engine revs much higher...any help is appreciated!!
Black smoke/rich
detonates.....no errors
I put in
new ecm, injectors ,cap/ rotor,temp cont sensor, o2 sensor, fuel/fuel filter .
noticed tach only revving to 2500 but engine revs much higher...any help is appreciated!!
12-10-2007, 01:28 PM
#6
Race Director
These guys might be close to you http://tpiparts.net/home and let you try a chip. They were nice people on the phone.
12-10-2007, 01:39 PM
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Yes found a leak and fixed it a couple of days ago, car improved but still way rich , checked all grounds...seemed okay...BTW those folks are nearby...Thanks big time!
Last edited by stifeout; 12-10-2007 at 01:47 PM.
12-10-2007, 02:00 PM
#8
Race Director
Welcome. Good job on finding the leak. Maybe resetting the computer would help after fixing the leak. The TPS and IAC set right? I found using the field service mode helpful as well. If it was real rich and you fixed it, perhaps the o2 or a plug could be fouled. Just some ideas..
12-10-2007, 02:18 PM
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Thanks AArdwolf,When I found the leak I thought I was home free!! Here's what ive done: compression test, all around 180 lbs, new injectors, tested them with pulse tester, all good, new o2 sensor, new coolant temp sensor, new dist cap ,wires, coil, module, new plugs. TPS okay, IAC I'll have to look up, don't remember what it is.......... new map sensor. Reset computer...No error codes
I'm going to put in a new knock sensor,connection looked good and Hopefully I can borrow an ecm and memcal to test!! Thanks for all the help!!!
I'm going to put in a new knock sensor,connection looked good and Hopefully I can borrow an ecm and memcal to test!! Thanks for all the help!!!
Last edited by stifeout; 12-10-2007 at 02:20 PM.
12-10-2007, 02:34 PM
#10
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Thanks AArdwolf,When I found the leak I thought I was home free!! Here's what ive done: compression test, all around 180 lbs, new injectors, tested them with pulse tester, all good, new o2 sensor, new coolant temp sensor, new dist cap ,wires, coil, module, new plugs. TPS okay, IAC I'll have to look up, don't remember what it is.......... new map sensor. Reset computer...No error codes
I'm going to put in a new knock sensor,connection looked good and Hopefully I can borrow an ecm and memcal to test!! Thanks for all the help!!!
I'm going to put in a new knock sensor,connection looked good and Hopefully I can borrow an ecm and memcal to test!! Thanks for all the help!!!
