93 TY running issue - timing ?
- Thread starter 3rdgentug
- Start date
Re: 93 TY running issue - timing ?
There actually is a switch undee the console the the PO had no idea was there that I noticed when cleaning the truck. I'm gonna be that is it. I might have pushed the button when I was cleaning.
Hopefully that's the issue.
after reading about valet mode last night it seems highly likely that is the culprit.
I will update first chance I get.
There actually is a switch undee the console the the PO had no idea was there that I noticed when cleaning the truck. I'm gonna be that is it. I might have pushed the button when I was cleaning.
Hopefully that's the issue.
after reading about valet mode last night it seems highly likely that is the culprit.
I will update first chance I get.
Re: 93 TY running issue - timing ?
I wasn't so lucky , switch didn't fix issue. Tried both buttons ,several times. Disconnected the battery , no luck with that either.
The truck will rev to 4000 rpm in park , then does the same thing.
I'm going to pull the ecm tonight when I get home n see what chips in there , go from there.
I wasn't so lucky , switch didn't fix issue. Tried both buttons ,several times. Disconnected the battery , no luck with that either.
The truck will rev to 4000 rpm in park , then does the same thing.
I'm going to pull the ecm tonight when I get home n see what chips in there , go from there.
Syclone#2960
What ever it takes!!
Re: 93 TY running issue - timing ?
almost like a rev limiter...does it have a MSD box with rev limiter pills on it?
almost like a rev limiter...does it have a MSD box with rev limiter pills on it?
Syclone#2960
What ever it takes!!
Re: 93 TY running issue - timing ?
I wonder if you are running a 3 bar map sensor instead of a stock 2 bar. It could of had a 3 bar chip and was replaced with the stock unit prior to selling...just thinking out load.
I wonder if you are running a 3 bar map sensor instead of a stock 2 bar. It could of had a 3 bar chip and was replaced with the stock unit prior to selling...just thinking out load.
Re: 93 TY running issue - timing ?
Code 42 is EST circuit. Seems to me this points to the ignition module in the distributor. You mentioned that you have a new dist. Wonder if you have a bad module. See if you can borrow a known good one to test with. Also check to see if the prom in the ecm is fully seated. Hope this helps http://www.fieros.de/en/v6help/code42.html
Code 42 is EST circuit. Seems to me this points to the ignition module in the distributor. You mentioned that you have a new dist. Wonder if you have a bad module. See if you can borrow a known good one to test with. Also check to see if the prom in the ecm is fully seated. Hope this helps http://www.fieros.de/en/v6help/code42.html
Re: 93 TY running issue - timing ?
I will check the prom when I get home. I could throw the old distributor in there n see what happens. The one in there now is suppose to be brand new n just replaced right before I bought it.
How do I check to see if its a 2 or 3 bar map sensor ?
I will check the prom when I get home. I could throw the old distributor in there n see what happens. The one in there now is suppose to be brand new n just replaced right before I bought it.
How do I check to see if its a 2 or 3 bar map sensor ?
Syclone#2960
What ever it takes!!
Re: 93 TY running issue - timing ?
My stock 2 bar has orange colored female connection and my 3 bar is black.
Disconnect the plug and check it.
My stock 2 bar has orange colored female connection and my 3 bar is black.
Disconnect the plug and check it.
Jimmy
Banned
Re: 93 TY running issue - timing ?
Plugs are ACDelco R43TS
I traced all the plug wires and they are in the correct firing order
I rechecked the codes after disconnecting the battery today and did idle relearn - drove it probably 60 miles today as well - no more code 42
MAP sensor has been replaced before - none of the number in the link supplied were present on this MAP sensor
I pulled the ecm out - the prom is in firmly
Plugs are ACDelco R43TS
I traced all the plug wires and they are in the correct firing order
I rechecked the codes after disconnecting the battery today and did idle relearn - drove it probably 60 miles today as well - no more code 42
MAP sensor has been replaced before - none of the number in the link supplied were present on this MAP sensor
I pulled the ecm out - the prom is in firmly
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Re: 93 TY running issue - timing ?
I tried this as well with no luck.
I tried hitting the switch I found every way in every combination I could think of.
key on , off , started...
holding them down ect.. spent about an hour test driving this with no luck. At this point I am not sure if the switch I found goes to the valet mode or not , I am trying to wire chase it now.
I tried this as well with no luck.
I tried hitting the switch I found every way in every combination I could think of.
key on , off , started...
holding them down ect.. spent about an hour test driving this with no luck. At this point I am not sure if the switch I found goes to the valet mode or not , I am trying to wire chase it now.
