shelbyone Posted May 25, 2017 Share Posted May 25, 2017 Gentleman! another day, another issue....( see video) I changed fuel pressure regulator, plugs, cables, rotor&cap, fuel filter, MAP, I get codes 12 and 14 ( points to MAP) very rough idle , then dies...my only other idea is either the fuel pump or the AIS... what do you think? TC dies.MOV 1 Link to comment Share on other sites More sharing options...
Hemi Dude Posted May 26, 2017 Share Posted May 26, 2017 Well, Code 14 indicates MAP sensor ELECTRICAL. So I would suspect the MAP sensor, wouldn't you? In your description of parts replaced, are you indicating you have already replaced the MAP sensor? As for the fuel pump, it's also a valid candidate. I have had many fuel pumps fail between my 3 vehicles that all use the very same electric fuel pump. But focus on the MAP sensor, the fuel pump does not set a code when it fails. Link to comment Share on other sites More sharing options...
Bill Reichert Posted May 26, 2017 Share Posted May 26, 2017 OR check the vac line from the fuel pressure regulator for gas vapor. When the fpr fails it will cause the same codes. I bought a 51,000 mile TC for $3,000 because the pos mechanic fixed the wrong thing. The seller would not accept more money because he was fed up and had to move overseas and either pay storage for 4 years or sell it. Link to comment Share on other sites More sharing options...
Reaper1 Posted May 26, 2017 Share Posted May 26, 2017 Definitely check the vacuum line. Also, make sure there's no oil or gas in the line. This indicates another issue as well as can damage the sensor. Link to comment Share on other sites More sharing options...
shelbyone Posted May 26, 2017 Author Share Posted May 26, 2017 checked VAC lines, no gas smell, no gas in line..fuel pressure reg, is brandnew.checked MAP connections, Vac lines ok, wires&plug ok and snug. Btw..MAP sensor is also almost brandnew..thats why I was confused by error 14 for it!! fuel pump is on its way from rockauto...did not order AIS module yet...that and fuel injectors are the last resort.. checked VAC lines, no gas smell, no gas in line..fuel pressure reg, is brandnew.checked MAP connections, Vac lines ok, wires&plug ok and snug. Btw..MAP sensor is also almost brandnew..thats why I was confused by error 14 for it!! fuel pump is on its way from rockauto...did not order AIS module yet...that and fuel injectors are the last resort.. Link to comment Share on other sites More sharing options...
Hemi Dude Posted June 1, 2017 Share Posted June 1, 2017 You said in your initial complaint Engine shuts off Have you replaced the distributor Hall Plate? You could be chasing ghosts here. It is ALWAYS nice to get as much information as possible from the customer (YOU) when trying to diagnose a problem. When does the engine shut off? As you are driving down the road? WHEN? When the engine initially quits running, does the TACH drop to 0 when this happens? If so, that is a prime indication of the hall plate in the distributor has expired. It may even start immediately again or after a short time to cool down. Any of this ring a bell? Link to comment Share on other sites More sharing options...
shelbyone Posted June 1, 2017 Author Share Posted June 1, 2017 Hey Hemi! look at the video I added to my first post!..TC starts with no issues, even when engine died. hesitates when accelerating, drives ok when driving..as soon as I stop at a traffic light, RPM goes down to around 500...fluctuates...and 5 out of 10 times, it dies...fuel pump was supposed to arrive today but didnt...will give feedback of this mission asap. Link to comment Share on other sites More sharing options...
Turbo Kane Posted June 1, 2017 Share Posted June 1, 2017 Replace the baro read solenoid on the same bracket the map sensor is attached to. It is probably stuck and not allowing the map to get a proper reading Link to comment Share on other sites More sharing options...
Hemi Dude Posted June 2, 2017 Share Posted June 2, 2017 20 hours ago, shelbyone said: Hey Hemi! look at the video I added to my first post!..TC starts with no issues, even when engine died. hesitates when accelerating, drives ok when driving..as soon as I stop at a traffic light, RPM goes down to around 500...fluctuates...and 5 out of 10 times, it dies...fuel pump was supposed to arrive today but didnt...will give feedback of this mission asap. OK, should have looked at the video, my bad. Link to comment Share on other sites More sharing options...
shelbyone Posted June 2, 2017 Author Share Posted June 2, 2017 took me 3.5 hours to get it all done...( of course, complications, brittle fuel lines had to be exchanged, tank dropping took forever...blabla... old pump looks pretty corroded and was not the original pump......tank looks pretty good, debris wise...put everything back together...2 cranks...bam..for now, looks like that was the issue...idle is smooth! will take it for a ride tomorrow. Link to comment Share on other sites More sharing options...
Hemi Dude Posted June 2, 2017 Share Posted June 2, 2017 Well, it has a Chrysler part number so if it wasn't the original, at least it was a MOPAR part. I am not surprised at a pump failure, I have had more than my share between my 3. Link to comment Share on other sites More sharing options...
shelbyone Posted June 2, 2017 Author Share Posted June 2, 2017 lets see how the tc behaves tomorrow....I'll report back! thanks hemi! as usual!~ Link to comment Share on other sites More sharing options...
shelbyone Posted June 2, 2017 Author Share Posted June 2, 2017 (edited) well, whaddayaknow....took the tc for a spin and I have to say , surgery was successful! no more hesitating, no more rpm fluctuations. much more responsive! oh, and no more codes! guess the fuel pump ( which does not give any codes for failing) causes other components to show codes ( map showed code 14 for electrical issue...) I am glad its done.... Edited June 2, 2017 by shelbyone (see edit history) Link to comment Share on other sites More sharing options...
Mark_Blodgett Posted June 3, 2017 Share Posted June 3, 2017 Go out this weekend and drive that TC like you just stolen it from someone in East LA...... You will know if you fixed it correctly. Have fun and enjoy, glad to see you are up and running. Link to comment Share on other sites More sharing options...
shelbyone Posted June 3, 2017 Author Share Posted June 3, 2017 Hey Mark! I always do! LOL...too bad you are so far away - we should have a coffee and talk tc! Link to comment Share on other sites More sharing options...
Mark_Blodgett Posted June 3, 2017 Share Posted June 3, 2017 I go north a lot to Santa Maria . Love to have coffee. Link to comment Share on other sites More sharing options...
shelbyone Posted June 7, 2017 Author Share Posted June 7, 2017 update time.... so, for a week, everything was peachy....drove about 100 miles since installing the new pump...today, car died in idle...started up right away, smelled gas...kept driving home and stopped another 10 times at lights and intersections...idle was ok, not rough or fluctuating... damn, and I thought its fixed...every day, something new thoughts>? injectors? Link to comment Share on other sites More sharing options...
Hemi Dude Posted June 8, 2017 Share Posted June 8, 2017 On 6/2/2017 at 6:46 PM, Mark_Blodgett said: I go north a lot to Santa Maria . Love to have coffee. Mark, take the drive North and help the kid out. It's only up to LA. Link to comment Share on other sites More sharing options...
Reaper1 Posted June 8, 2017 Share Posted June 8, 2017 Any codes stored in the computer? Link to comment Share on other sites More sharing options...
Guest Tks Posted June 14, 2017 Share Posted June 14, 2017 Hey hemi dude my 91 is having the same symptoms as you described earlier with letting it set for a while and it starts back up when it first stalled on me I was at a stop soon as I touch the gas it died instead of messing with it I called a cab and let the car sit for 30 hours when I came back it started right up ran great got it about halfway home and it died again which was about three miles I let it set 10 minutes and try to start it it hit a couple times and died on my second attempt of letting it set for 10 minutes it ran for even less time then the first one A friend of mine said he thinks it might be the screen on the fuel pump is clogged Link to comment Share on other sites More sharing options...
TwinCamFan Posted June 18, 2017 Share Posted June 18, 2017 On 6/14/2017 at 2:19 PM, Tks said: Hey hemi dude my 91 is having the same symptoms as you described earlier with letting it set for a while and it starts back up when it first stalled on me I was at a stop soon as I touch the gas it died instead of messing with it I called a cab and let the car sit for 30 hours when I came back it started right up ran great got it about halfway home and it died again which was about three miles I let it set 10 minutes and try to start it it hit a couple times and died on my second attempt of letting it set for 10 minutes it ran for even less time then the first one A friend of mine said he thinks it might be the screen on the fuel pump is clogged So how old is the pump on your 91, is your answer 26 years old? If so are you really wondering why your car is stalling out? 1 Link to comment Share on other sites More sharing options...
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