302 motor

[papasmurfcdp67]

I just replaced the motor in my 1994 Bronco its a high output 302 I have 600 miles on it and it seems so weak my dad's Bronco with a 351 has so much more power why?I know the difference shouldn't be as much as it is. 

 

[Bully Bob]

Hi..., Welcome...!

Double check the tune.

Often the exhaust can have issues causing power loss. Cat. &/or muffler.

 

[papasmurfcdp67]

I do have a exhaust leak that is going to be getting fixed soon. So that could be it thanks 

 

[miesk5]

yo PAPA,

As Bob advised;

Also, by Ford; Symptom Charts — Chart 6

http://www.thedieselstop.com/faq/9497faq/maint/vra/vra07012.htm

 

 

1994 PCED OBDI-A
SECTION 7A: EEC-IV Intermittent Fault Diagnosis
 

 

EEC-IV MONITOR: Symptom Charts — Chart 6
 

LACK/LOSS of POWER System Possible Causes Visual/Mechanical EEC Air/Vacuum

• Check vacuum lines for leaks or wear.
• Check air intake system.

• TP sensor
• MAP/BARO sensor
• MAF sensor
• IAC solenoid
• IMRC solenoid

Fuel

• Check for correct fuel pressure.
• Check fuel lines for contamination or restrictions.
• Check for clogged fuel filter.

• Fuel Injection:
  INJ 1, 2 (MFI)
• INJ 1, 2 .. (SFI)·FPRC solenoid·HO2S(s)

Ignition

• Check for correct base timing.
• Check for wear or corrosion in distributor.
• Inspect ICM for damage.

• Ignition System:
  PIP circuit
• SPOUT circuit
• DPI circuit
• KS sensor

Other

• Check EGR valve sticking.
• Check for PCV valve for correct operation.
• Check for restricted exhaust.
• Inspect electrical connections, wires, and harnesses.
• Check for partially binding brakes.
• Check camshaft timing and cylinder compression.

• EGR Systems:
  EGRT, EVP, DPFE or PFE sensor
• EGR solenoid(s)

[*]AIRB solenoid
[*]AIRD solenoid
[*]EPC solenoid
[*]TCC solenoid
 

Try a Self Test for Diagnostic Trouble Codes (DTC)s by my pal, BroncoJoe19
http://broncozone.com/topic/14269-code-reader/?&pid=74587&mode=threaded

The engine temperature must be greater than 50° F for the Key On Engine Off (KOEO) Self-Test and greater than 180° F for the Key On Engine Running (KOER) Self-Test.
Run it around to heat the engine up and shift thru all gears incl Reverse. Then turn off all accessories/lights, etc.

Make sure A/C is off and transmission is in Park (automatic) or in Neutral for a Manual & release clutch.

Do Key On Engine Off (KOEO) portion first.


And Post em here according to:
KOEO
&
KOER