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Author
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Topic: 5.0 "limp mode" ecu
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street_illegal_stang
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Member # 1554
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posted
 
 
okay,
after swaping mass air sensor,rechecking grounds and checking injector connections. all good.
the car runs the same..feels like ocassionally running on 7 cyl.or timing is advancing .
I thought maybe thats the limp mode sytoms.My question is will the car still run shitty after fixing the problems like code 66 mas low volts.I have disconnected the ground on the battery but yet had a chance to drive it.What do you think?
P.S after changing sensors, I started it for 3 minutes and pulled the coded again to find out it still has the code 66.I know its a memory code
so will unpluging the battery do the trick getting the car outta this limp mode?
Posts: 1276 | From: Long Beach C.A | Registered: Jul 2002
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89SC50
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Member # 6248
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posted
Unplug the battery for 20 min and it will reset the codes
Posts: 185 | From: santa rosa | Registered: Nov 2005
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street_illegal_stang
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Member # 1554
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posted
Alright, I've unpluged the battery for 20 min.
drove it about 10 miles.Still runs rough, misses and during accel and cruise.
Codes pulled-33 and 67
33 egr valve position sensor or pressure feedback egr indicates valve not opening,or egr valve not seating properly(closed)
67 improper signals are being recieved from either the neutral drive switch/neutral gear switch/neutral pressure switch/clutch switch/or air condition on during self test.
--------Fyi---
My car is a original 5 speed and I took the a/c a few years ago.Would a bad egr valve cause my car to run rough as described?the vacuum line is not hooked up to the egr.If i decide to connect it back on do I use a direct vacuum source from the intake manifold? any help with be appriciated
Thanks ![[patriot]](graemlins/patriot.gif)
Posts: 1276 | From: Long Beach C.A | Registered: Jul 2002
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*BlueBeast88.306*
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Member # 6360
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posted
The EGR should be feed from a vaccuum solenoid on the back of the passenger side shock tower. Sometimes the coolant temp. sensor on the intake manifold will go bad and cause it to run shitty and throw strange codes.
Posts: 462 | From: Concord | Registered: Jan 2006
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street_illegal_stang
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Member # 1554
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posted
Thanks dude.I just made another post in regards.
so If I plug in the 4 smog vacuum lines back on should it correct it self?
Posts: 1276 | From: Long Beach C.A | Registered: Jul 2002
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*BlueBeast88.306*
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Member # 6360
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posted
It should correct the EGR problem, but I don't think will do anything about the Neutral/AC code. I had that same code come up on mine and changed the coolant temp. sensor and haven't had any problems since. I don't know if it will help yours, but I had the same problem.
Posts: 462 | From: Concord | Registered: Jan 2006
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