1987 2.9 erratic idle and drivability issues

[Zapper]

Might be time to crack open the ecm

ive cracked open all my ecms, even the one in the truck, they are all immaculate

 

[rusty ol ranger]

ive cracked open all my ecms, even the one in the truck, they are all immaculate

Unfourtantly though that dont always mean they are ok

 

[bobbywalter]

yeah, definitely seems an egr injector issue.

the egr causes an intermittent vacuum leak, is it a non egr or egr truck?

 

[rusty ol ranger]

yeah, definitely seems an egr injector issue.

the egr causes an intermittent vacuum leak, is it a non egr or egr truck?

Assuming its the original engine and hasnt been dicked with 87 would be egr