2001 Kia Rio Bogs, Won't Accelerate

KIA

ORRB

MEMBER
1 POST

Have 2001 Kia Rio,replaced head and,now have engine check light,and engine bogs,and won't accelerate,put scanner on it and only code that comes up is an E,checked for vacuum,and air leaks,all O.K.,good compression.Got me stumped.

Jun 18, 2006 at 12:39 PM

CODY-ODY

✓Experienced Mechanic
57 POSTS

check the vacuum on the engine with a vacuum guage and see if it flutchuates more than 5hg(mercury inches) and also if the vacuum is within specs( at idle approx 18-23 steady)
if you have low readings it means you have a restriction in the exhaust. If you have a fluctuation it means one or more of your cylinders have low compression.
The code "e" from your scanner ......there is no such code.Try again or with another scanner...codes for vehicles are numbers!
Good luck and I hope I was some help!

Jun 19, 2006 at 1:11 PM

🔧 Tools & Auto Repair Parts

Find automotive tools, diagnostic equipment, and replacement parts for your next repair.

Shop on Amazon →

Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.

Suggested Repair

Rescan with another scanner because E is not a valid code and codes are numeric. Measure intake vacuum at idle; it should be about 18-23 inHg and steady. Low vacuum points to an exhaust restriction, and fluctuation of more than 5 inHg points to low compression in one or more cylinders.

Conversation Summary

A 2001 Kia Rio has a check engine light, bogs, and will not accelerate after a head replacement. Vacuum leaks were checked and compression was reported good, but the scanner only shows E. The expert said E is not a real code and advised using another scanner, then checking idle vacuum: low steady vacuum suggests exhaust restriction, while fluctuation over 5 inHg suggests low compression.

Add a reply

Ask a new question

2001 Kia Rio Bogs, Won't Accelerate

Suggested Repair

Conversation Summary

Related Repair Questions

Frequently Asked Problems for This Vehicle