Saturn Repair Problems? Ask a Mechanic for Answers ASAP
Hello, yes a fuel pump or crank sensor can cause this type of concern. A diagnostic check for codes with a scan tool should be done to help localize the issue, If its setting lean codes, Id suspect a possible fuel pump. A fuel pressure test with a gauge would need to be done to see if it is dropping off fuel pressure when the problem occurs. A crank sensor may or may not set a code. If it restarts and runs ok it my be an issue with a mass airflow sensor. Check for codes first, see if anything leads to a possible issue.
Do you need more help with this concern?
Yes it is a way to test and see if the vehicle has better performance by disconnecting it, puts vehicle in a default stratgey. No codes is good. lean codes would indicate an issue with a vacuum leak or fuel pump (MAF sensor also). Inspect the MAF sensor for any debris inside the sensor wire like a bug or piece of paper from the air filter. If something is on the sensor wire it will cause different drivability issues.
Hello, do you need more help with this concern?
Very good, let me know how it turns out. If you need more help let me know. If I was helpful, please leave a positive rating
Still no codes? No security system codes in the body control module?
Was the BCM programmed when replaced? WHat lead you to replace all these parts?
Well at this point this is what I would recommend since you are hanging parts with unsure results, the scan tool you are using may not be giving you all the information to find the root cause. If it ran before with the old fuel pumps and now not at all, might be an issue with the wiring to the fuel pumps.