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Matt, Engineer
Category: Nissan
Satisfied Customers: 21630
Experience:  BEng hons Mech engineering, worked in auto industry for 22 years on engine, transmission and suspension design
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Ultima: i have a big problem, my Nissan 2003 Altima will run

Customer Question

i have a big problem, my Nissan 2003 Altima will run great at 100 mph but as soon as you slow down as the rpms slow it dies. my mechanic has changed all the censors and is getting an open loop fault reading but does not know how to fix it. any help or advice would be appreciated
Submitted: 2 years ago.
Category: Nissan
Expert:  Matt replied 2 years ago.
Hello if the engine won't run at slow speed then I'd suggest doing a compression test across all cylinders , as they should all be within 10-15 psi of each other
Expert:  Matt replied 1 year ago.
do you still need help?