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Engine cuts out whilst driving. (Page 4)

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Author	Topic: Engine cuts out whilst driving.
ed monahan POA Lifetime Site Supporter Prowler Junkie Personal ScrapBook From:Cincinnati, Oh, USA Registered: Jul 2000 Admin Use	posted 06-28-2014 05:17 PM Can a PCM be switched out from car to car? Or does it have to be "flashed" or programmed at the dealer?
DIXIE Cat POA Site Supporter Prowler Junkie From:FLORIDA, USA Registered: Mar 2011 Admin Use	posted 06-28-2014 10:44 PM quote: Originally posted by ed monahan: Can a PCM be switched out from car to car? Or does it have to be "flashed" or programmed at the dealer? If it's from the same year no flashing is required unless you want to change the odometer setting. Please note the odometer in the PCM is not the one that shows up on the dashboard. The one that shows on the dashboard is from the BCM (body computer module). The reason the PCM has an odometer setting is for "warranty purposes" comparing what is shown on the dash should there be any questions of tampering.
ed monahan POA Lifetime Site Supporter Prowler Junkie Personal ScrapBook From:Cincinnati, Oh, USA Registered: Jul 2000 Admin Use	posted 06-28-2014 11:26 PM Thanks for the clarification. I thought there was something that made it unique to each car but couldn't really remember and didn't want to post bad info.
TooHipCat POA Site Supporter Prowler Junkie From:Londonderry,NH Registered: Mar 2004 Admin Use	posted 06-30-2014 01:49 PM quote: Originally posted by CCJ: Throttle position sensor Thanks again CCJ! Can you help out on it's location? I just may try replacing mine to see if it clears up my kats problem. Thanks!
CCJ POA Site Supporter Prowler Junkie From:Little Rock, AR, USA Registered: Jan 2013 Admin Use	posted 06-30-2014 02:31 PM quote: Originally posted by TooHipCat: [B]Thanks again CCJ! Can you help out on it's location? I just may try replacing mine to see if it clears up my kats problem. Thanks! [/B] Yes sir Locate your air intake plastic (left of the throttle body if looking into the car from front of vehicle) Follow the air intake plastic all the way to the throttle body. Mounted on the left side of throttle body you will see a plug that leads to a black plastic being held on by two black screws (I think the two screws are a t15?) I had to take the intake out completely in order to reach my wrench in there to get the old tps out. If still confused I can send you a video.
TooHipCat POA Site Supporter Prowler Junkie From:Londonderry,NH Registered: Mar 2004 Admin Use	posted 06-30-2014 04:40 PM quote: Originally posted by CCJ: Yes sir Locate your air intake plastic (left of the throttle body if looking into the car from front of vehicle) Follow the air intake plastic all the way to the throttle body. Mounted on the left side of throttle body you will see a plug that leads to a black plastic being held on by two black screws (I think the two screws are a t15?) I had to take the intake out completely in order to reach my wrench in there to get the old tps out. If still confused I can send you a video. I will attempt to locate it on my 97... even though it has dual throttle bodies. Thanks! BTW...did you pick up a code that told you it was bad?
CCJ POA Site Supporter Prowler Junkie From:Little Rock, AR, USA Registered: Jan 2013 Admin Use	posted 06-30-2014 04:45 PM quote: Originally posted by TooHipCat: I will attempt to locate it on my 97... even though it has dual throttle bodies. Thanks! [B]BTW...did you pick up a code that told you it was bad? [/B] I had a code then it went away. And stayed gone for a month but on a whim i replaced it and it fixed the problem Crap, yes your 97 is different then mine This message has been edited by CCJ on 07-18-2014 at 11:17 AM
Dave Haggas Prowler Junkie From:united kingdom Registered: May 2007 Admin Use	posted 07-17-2014 01:28 PM An update of sorts. Car has been diagnosed as running too rich. This means a vacuum leak or O2 sensor/s gone bad. My guy has gone away and is going to look into the codes that were pinged up. Basically the car has become more erratic in its timing of when it shuts down. Fortunately when he had it running after about 20 mins it shut down, which was great and it through up some codes, not P codes though. So I may be looking for advise on oxygen sensors and where to buy from. At least we are moving forward. While we were looking for obvious signs we removed the PCM. We took off the backing plate and were a little surprised by how rubbish they are? Water ingress looks as though it could happen etc....
CCJ POA Site Supporter Prowler Junkie From:Little Rock, AR, USA Registered: Jan 2013 Admin Use	posted 07-17-2014 02:53 PM I posted earlier in this thread that a new TPS cured my engine cutting out for half a second while accelerating. Then engine comes back after half a second and acceleration resumes... That is now no longer the case. I still have "acceleration stalls" for half a second :/ Back to the drawing board.
TooHipCat POA Site Supporter Prowler Junkie From:Londonderry,NH Registered: Mar 2004 Admin Use	posted 07-18-2014 11:12 AM quote: Originally posted by CCJ: That is now no longer the case. I still have "acceleration stalls" for half a second :/ My 97 will occasionally cut out when I'm DECELERATING...lol. I'm also frustrated!!!
ed monahan POA Lifetime Site Supporter Prowler Junkie Personal ScrapBook From:Cincinnati, Oh, USA Registered: Jul 2000 Admin Use	posted 08-19-2014 08:35 PM Dave, I know you are laid up with the shoulder but did you get your sensors installed by any chance? It will be interesting to find out if that fixed it.
Dave Haggas Prowler Junkie From:united kingdom Registered: May 2007 Admin Use	posted 08-20-2014 04:49 AM Hi Ed, there is some news. We got the upstream sensors fitted, these are the ones that are seen from the top. The old came out really easy, new ones installed. The bottom ones are more tricky due to location, corrosion and driveway! It will hopefully get done Thursday or Friday. After the first pair were fitted the car on start up seemed to idle a little faster but soon settled down. A faster trip down the road and the car did seem to have a bit more get up and go, but that could be in my head. Downside is the car did cut but still kept lit and carried on. The next day saw a non stop drive of about 2 hrs with no issues at all. The next day whilst warming up the car cut out, dead. The water temp needle was at about a quarter from cold. Turned the key and it started up fine then cut again at correct temp. Started by key again and was fine for a good half hour drive. Next day same thing happened. Next day for the return trip home, the car cut out a record four times before the temp needle was at correct position of half way. On its fourth cut we were on a freeway with a bloody big truck behind, a little scary to say the least. Coasted to a stop. Turned the key, car started and drove faultless for two hours. Go figure? So the sensors have done something for sure. My mech does have some more info and when the car goes back in tomorrow, fingers crossed, he will fit the other two sensors and go through the computer again.he does suspect a couple of other things too. So you may hear from me via PM if that's ok? Something, somewhere is telling that shutdown relay to do what it is for, simply to shut it down. I shall keep you posted for sure and thank you Ed.
phil2237 POA Site Supporter Prowler Junkie From:PLACENTIA CALIFORNIA Registered: Feb 2005 Admin Use	posted 08-20-2014 08:54 AM I would try the cam sensor, still say that a O2 sensor will not kill the engine
catfish POA Site Supporter Prowler Junkie From:scottsdale,az,usa Registered: Jun 2001 Admin Use	posted 08-20-2014 09:17 AM its the coolant temp sensor is defective.when not working correctly the signals it sends cause many problems,replace before buying other more expensive parts.had silmilar problems with mine.the key is the erratic temp readings.let us know. ------------------ This message has been edited by catfish on 08-20-2014 at 09:19 AM
beachcat BANNED From:Ontario, Canada Registered: Jul 2011 Admin Use	posted 08-20-2014 09:53 AM Silly question bit have you tried replacing the shut down relay (assuming there is such a part)?
Dave Haggas Prowler Junkie From:united kingdom Registered: May 2007 Admin Use	posted 08-20-2014 01:02 PM Thanks guys for all your help. Catfish, the temp gauge isn't erratic at all. I was explaining that once you've turned the key to start the car from cold, and it was running as the temp gauge is creeping up as normal as to when the car cuts out. I'm not denying your help though. A defective temp sensor may well be our issue. Phil, you may indeed be correct, lets find out soon! We shall look into cam sensor. Thank you. Roger, all the relays are the same, so I switched the horn relay for the shut down relay. They are the same part. So I shall let you know when I know more. Thank you guys for bothering and your replies are so helpful. This message has been edited by Dave Haggas on 08-20-2014 at 01:03 PM
garysss POA Site Supporter Prowler Junkie From:Balto. Md. Registered: Jun 2005 Admin Use	posted 08-20-2014 02:58 PM Dave, MDProwler just had this same problem. He replaced the crank sensor and no more problem. It's easy to replace, it is located on the flywheel.
Dave Haggas Prowler Junkie From:united kingdom Registered: May 2007 Admin Use	posted 08-20-2014 03:22 PM Thanks Gary, I've pm'd him. How did he find out it was the crank sensor?
garysss POA Site Supporter Prowler Junkie From:Balto. Md. Registered: Jun 2005 Admin Use	posted 08-20-2014 07:44 PM Dave, I can't remember for sure, I think he was getting several codes. He bought the cam and crank sensor. We did the crank first because it was easier and didn't have to lift the manifold. So far it hasn't happened again, as far as I know. See what he says when he returns your PM. I bought a crank sensor to carry in the car after this, just in case. This message has been edited by garysss on 08-20-2014 at 07:48 PM
phil2237 POA Site Supporter Prowler Junkie From:PLACENTIA CALIFORNIA Registered: Feb 2005 Admin Use	posted 08-20-2014 11:31 PM Dave, A while back, you said your mechanic told you that it will not run with or will stall with the O2 sensor bad. I have been thinking a lot about this. Today , took the Prowler out , disconnected the O2 sensors , and drove the car appox 65 miles, Had my computer hooked up, Yes the check engine light came on, As per my computer, It went into lean burn just after coming off idle, The car still ran great, never missed a beat. Rehooked up the sensors, reset the computer & all is good. So in my own opinion, I have never heard of what your mechanic has told you, O2 sensors can loose a lot of performance as this is what tells the computer how much fuel or air to mix. It may run very lean, but it will still run with or without those sensors.
Dave Haggas Prowler Junkie From:united kingdom Registered: May 2007 Admin Use	posted 08-21-2014 03:25 AM Phil, thank you very much for your service. Very interested to hear this and I shall forward details on to him.
Dave Haggas Prowler Junkie From:united kingdom Registered: May 2007 Admin Use	posted 08-21-2014 05:21 AM Ok, no real new news but do know my car is saying its running rich. It will have the other O2 sensors fitted next week now. No codes were being thrown up at all, which doesn't help at all. Only cuts out in the window of warming up. After warm up, doesn't appear to have any issues. Lets see what next week will bring after another hook up....
phil2237 POA Site Supporter Prowler Junkie From:PLACENTIA CALIFORNIA Registered: Feb 2005 Admin Use	posted 08-21-2014 09:38 AM Just remember that there are only a few sensors that will actually let the engine die. One is the cam sensor, which I suspect is your problem, I hope you get this fixed as I would like to see what they find. Another would be the TPS. Both these sensors can be tested with an ohm meter. You also might want to check the connectors for those two sensors. If your mechanic should pull the Cam sensor, have him see if there is any missing or damaged magnets on the gear. A test of your ECM would also be recommended. This message has been edited by phil2237 on 08-21-2014 at 09:40 AM
Dave Haggas Prowler Junkie From:united kingdom Registered: May 2007 Admin Use	posted 08-21-2014 11:27 AM All sounds sensible to me but testing the ECM? A little more tricky.
CCJ POA Site Supporter Prowler Junkie From:Little Rock, AR, USA Registered: Jan 2013 Admin Use	posted 08-21-2014 05:39 PM quote: Originally posted by Dave Haggas: All sounds sensible to me but testing the ECM? A little more tricky. Yes how does one test the ecm?

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