1995 Nissan Pickup (D21) Q&A

1995 Nissan Pickup (D21) Question: 97 nissan pu 2.4, runs rough,no pwr on accel, has new dist.,& all tu related

items, keeps setting diff. misfire code p0301-p0304, new cat. put on... with cat off, still falls flat on accel and idles rough...sometimes @ high rpms runs smooth.....plz help thanks in advance... -
Answer 1
Check fuel pressure and volume and for vacuum leaks. Check egr. -
Comment 1
all fp is good koeo and koer, injectors all have pulse, no vacuum leaks and all hoses replaced for good measure. -
Answer 2
Possible Intake Gasket leak, also check vacuum lines for leaks. Smoke test would be best for this situation, check with your local Technician. -
Comment 1
all fp is good koeo and koer, injectors all have pulse, no vacuum leaks and all hoses replaced for good measure. tried that. thinking ecm or ign. sw. -