1998 Ford Explorer 5.0 V8 top end, ecu, wiring, sensors, etc.
1995 Mustang 5.0 shortblock
Comp Cams xe254HR-14
Just built a new engine because a wrist pin failed in my original engine. Motor starts and idles fine, drives fine, but has a miss (like the engine shuts off momentairly) at 1200rpm. Worse with my tune from Deciphia, driveable with the stock tune but the misfire is persistent. It goes away above 1200rpm, and at idle. Happens with barley any throttle input, like stuck in traffic at 2mph. It does have a slight hesitation after cracking the throttle.
Checked for vac leaks. I am suspecting either spark, or fuel related. Attached is my Forscan log and a screenshot of my LTFT's that look suspect on bank 2. Help?
Need help - Fuel control issue and misfire
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- Posts: 33
- Joined: 2021 Jun 27, 20:48
- Location: Hesperia, California
- Vehicle Information: 1998 Ford ranger
ENGINE / ELECTRICAL SWAP -
1998 Ford Explorer 5.0 PCM / BCM / ENGINE / ALL WIRING
Engine Mods:
1995 Mustang 5.0 Bottom end
GT40P heads milled .010
1.7:1 Rollers w/ Cobra hyd roller lifters
Comp Cams XE264HR
.010 oversize exhaust valves
beehive springs
Stock intake/exhaust (for now)
24lb injectors, 255lph pump, ready for install, TM Headers on order
Need help - Fuel control issue and misfire
- Attachments
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- Forscan Datalog.zip
- (217.89 KiB) Downloaded 193 times
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- Posts: 5094
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'19 F-150 3.3L
Re: Need help - Fuel control issue and misfire
posted link in your thread