1997 GTS coughing, popping and banging under acceleration?

[Viper Craig]

Hello all!

My 1997 GTS has recently had some work done, service etc but now when the car is under load it is coughing, popping and banging with a massive lack of power. The car doesn't do it on idle, so do any of you knowledgable people have any suggestions what it might be?

I'm curious if it's a lack of oil pressure or possibly a 'MAF' sensor or similar. Any ideas, suggestions or advice would be highly appreciated.

Thank you all!

[Viper Craig]

The work was just a general service and a bit of welding underneath. Think the plugs and leads are fine, however I brought up the oil pressure comment because he guy said he couldn't find an OEM oil filter, so I was curious if that might be causing an issue. He did say it was right for the car, but I know they can be a little sensitive over oil pressure etc.

Car has B&B Headers and K&N air filters.

Edited by Viper Craig on Monday 19th August 21:38

[Viper Craig]

Would have thought if the PCM was gone then the car wouldn't work at all?

I'll have to check oil pressure gauge

[Viper Craig]

The car was off the road for 12 months before the work was done, and yes I pay somebody to work on it for me.

The welding was done around the sills behind the front wheels.

No lights on the dash regarding engine management etc, only light on at the moment is the service light.

I'll have to ask somebody to disconnect the battery for me as i'm currently waiting for knee replacement surgery, so I don't even get to drive the car at the moment anyway

Thanks for the advice

[Viper Craig]

No, not engine management light, think it actually says 'Service Engine' or something like that.

Battery has been on a trickle charger whilst the car has been off the road, so it should be good. The coughing and popping on the car has gotten worse iver the past two weeks as it has been driven from house to workshop to storage etc.