Cuts out when car is driven fast?

TAMFRNZ

MEMBER
1996 VAUXHALL TIGRA
4 CYL
2WD
MANUAL
88,000 MILES

Engine cuts out when driven fast and then when slowing down. Engine management light comes on and car quits it. Need some direction as to what the problem is ! Apart from the issue car runs fine otherwise.

Thursday, November 26th, 2009 AT 2:41 PM

1 Reply

SQM

MECHANIC
6,383 POSTS

Hello,

Typically when a vehicle seems to hesitate on acceleration is can due to weak spark plugs or poor fuel supply.
First need to check the spark plugs. Inspect, clean and adjust the gap if necessary. If there is too much carbon build up they need to be replaced.

https://www.2carpros.com/articles/how-to-test-an-ignition-system
https://www.2carpros.com/articles/how-to-change-spark-plugs

If there is a restriction on the fuel line for the fuel pressure regulator is not functioning properly it could also make the engine to hesitate on acceleration.
Check the fuel pressure at the fuel rail. Make sure the fuel filter is clean and free of any debris.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
https://www.2carpros.com/articles/how-to-change-a-fuel-filter

As you mentioned the check engine light is illuminated. Get the vehicle scanned for trouble codes. As it can help with the diagnostics.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let me know of any questions.
Thank you.