Hello, I have a 91 accord 5 spd with an h22a1 swap motor and transmission, all stock internals on both. The motor's top end has been rebuilt, so I'd say it has roughly 500 miles on it, and the bottom end has roughly 31,000 miles. I have a p13 ecu in the car with the original f22 harness modified for the h22 motor, I also had vtec & knock sensor wired up.
At the time of writing this, I have just went out & bought two jack stands so I can get underneath my car to figure some of these issues out.
I will list all of my issues here in hopes I can fix them all with your all's help.
Issue I. Ecu throws two codes:
1). 23 - Knock sensor; haven't checked behind the block yet, but the vtec used to work before I had to have the top end rebuilt due to a warped cylinder.
2). 41 - O2 sensor; recently had exhaust put back on and O2 sensor was severed.
Issue II. Surging idle occurs often but not always when in neutral or clutch is pressed & engine has warmed up; Otherwise it idles between 1,000 rpms - 1,200 rpms:
- I have checked for vacuum leaks to no avail.
- I've checked both my Idle Air Control & Fast Idle Air Control valves, both are fine.
- I've drained, refilled, drained & refilled my coolant system to rid it of air in the lines, also using the nipple behind the thermostat housing.
- EGR valve has a block-off plate but the vacuum hose is connected (I figured since it through no CEL that it wasn't an issue).
Issue III. Popping noise only when car has been driven & then turned off:
- I honestly have no idea.
Issue IV. Trouble shifting through the gears but not leaking any fluid:
*** Replaced Slave Cylinder with a new one I had lying around, bled the clutch system thoroughly [12-27-'13]
Issue V. Recently I discovered that the Oil Pan is missing either four or five oil pan bolts & needs replaced:
*** Replaced all missing Oil Pan Bolts [12-24-'13]
Issue VI. Just recently discovered that white smoke appears to be leaking from the thermostat housing while the car is running; while the car is off I noticed antifreeze dripping on the back of the block, just below the thermostat housing:
- The bolts appear to be tight on the Thermostat housing, the gasket doesn't appear broken and fliuid does not leak from the housing.
Update 1!
Here's a few pictures I took while I manged to get underneath the car:
- Oil Pressure Sensor
- Oil Pressure Sensor (close up)
- Oil Pan
- Significant Red-Tipped Bolt (side view)
- Significant Red-Tipped Bolt (front view)
Update 2!
- I have inspected the VTEC solenoid, it is fine, the gasket looks great and the filter isn't clogged.
- I put the missing 10mm bolts in the oil pan.
At the time of writing this, I have just went out & bought two jack stands so I can get underneath my car to figure some of these issues out.
I will list all of my issues here in hopes I can fix them all with your all's help.
Issue I. Ecu throws two codes:
1). 23 - Knock sensor; haven't checked behind the block yet, but the vtec used to work before I had to have the top end rebuilt due to a warped cylinder.
2). 41 - O2 sensor; recently had exhaust put back on and O2 sensor was severed.
Issue II. Surging idle occurs often but not always when in neutral or clutch is pressed & engine has warmed up; Otherwise it idles between 1,000 rpms - 1,200 rpms:
- I have checked for vacuum leaks to no avail.
- I've checked both my Idle Air Control & Fast Idle Air Control valves, both are fine.
- I've drained, refilled, drained & refilled my coolant system to rid it of air in the lines, also using the nipple behind the thermostat housing.
- EGR valve has a block-off plate but the vacuum hose is connected (I figured since it through no CEL that it wasn't an issue).
Issue III. Popping noise only when car has been driven & then turned off:
- I honestly have no idea.
Issue IV. Trouble shifting through the gears but not leaking any fluid:
*** Replaced Slave Cylinder with a new one I had lying around, bled the clutch system thoroughly [12-27-'13]
Issue V. Recently I discovered that the Oil Pan is missing either four or five oil pan bolts & needs replaced:
*** Replaced all missing Oil Pan Bolts [12-24-'13]
Issue VI. Just recently discovered that white smoke appears to be leaking from the thermostat housing while the car is running; while the car is off I noticed antifreeze dripping on the back of the block, just below the thermostat housing:
- The bolts appear to be tight on the Thermostat housing, the gasket doesn't appear broken and fliuid does not leak from the housing.
Update 1!
Here's a few pictures I took while I manged to get underneath the car:
- Oil Pressure Sensor
- Oil Pressure Sensor (close up)
- Oil Pan
- Significant Red-Tipped Bolt (side view)
- Significant Red-Tipped Bolt (front view)
Update 2!
Originally posted by Jarrett
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Originally posted by cp[mike]
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