Hello all,

I know there are a lot of similar issues out there, some that I've already fixed. But the car is being temperamental and I don't trust driving it. Here's what happened:
First symptoms: Starting, dying immediately, I start it again, dies, repeat 2-3 times. Then it drove fine for a couple months with no issues.
Second symptom: it started and died, started and died again, then would not crank at all. All accessory power came on. I disconnected and reconnected the battery, it started right up. Fine for another month.
Third time: it died about 1 mile from home while driving. I could not get it to start again and got it towed home. When I turn on accessory after this happens, the radiator fan kicks on and runs, if that means anything.

I've replaced the CPS years ago with similar symptoms so that was my first thought. Tried that and nothing. I pulled out the RCM, which I've already had re-soldered by the guy who fixes them on here, cant recall his name. It looked okay to me.
I plugged in my ODBII reader to check for codes and got nothing. Messed around a little more and it started up, died 30 seconds later.
Wouldn't start for about 5 mins, still checking for codes and testing random things. Tried it again and it started fine, drove it around the block. Turned it on and off 4 more times with no problems.

Any ideas what I should test for or try next? I'm afraid to drive it anywhere far.

Thanks so much!!

 

If the radiator fan kicks on at high speed when in accessory position that is surely the RCM so you should get it repaired again or buy a new one.

It is possible you have an intermittent skreem issue but I would change the CPS again and make sure it is a Bosch one since skreem does not cause the car to randomly die when running.

 

I noticed you applied a very high tech test resulting in the engine starting, Why not start with thoroughly checking out the condition of your battery, battery cables, and making absolutely positively certain you have a good ground. This infers a good ground between the battery and the frame and the frame to the engine. I highly recommend doing this before doing anything else. Maybe you should buy a new high quality battery such as an Interstate or an equivalent. Also tell us a little bit about the condition and maintenance of your xfire.

 

Basically, do what Ronman said. But I do have a thing or two to add.....

First time: Could be low fuel pressure, bad RCM (fuel pump relay) crappy TB or MAF, bad crank sensor, etc.
Second time: Sounds like, as Ron said, a funky SKREEM or poor power feed to the SKREEM causing it to lock up. Suspects: Battery, battery terminals, ground strap from block to chassis, battery ground cable, etc. I'd do James' grounding mod TODAY. (See link below)
Third time: RCM failure as Ronman said. Easy fix. Get it done today.


Do James' fix, not mine, in the thread here. Do it today, I've done it to my last two Roadsters:
https://www.crossfireforum.org/forum...le-engine.html

 

When did I do your RCM? Back in the early days only the air pump relay was replaced. Appears the engine control relay has failed.
Email me your name and I should be able to find when it was done.
tighed1@hotmail.com