lockstock

Hi, I recently replaced the H22 engine in my 93 EG hatch with another H22 after the piston rings fried.
The engine came from a working jdm Prelude 2.2 vtec.
We had trouble getting it to fire up initially but it turned out to be the distributor.
But now we've hit a whole new problem....

When you start the engine, it idles ok and everything sounds like it should but as soon as
you put your foot on the accelerator, it starts reving up and down on its own. Making it undrivable.
If you let your foot off, it goes back to idling ok so that rules out the idle control valve??
Its almost as if the engines trying to cut out.

Please help, even my local shop can't fix it!

noremorseracing

just had the same problem, it was my tps on the back of the throttle body...also did u bleed the cooling system???

lockstock

Awesome, thanks for your reply. Gonna order me a tps sensor!
And yes we bled the system when we swapped the engine.

noremorseracing

good deal, if u got a spare throttle body around they are all the same.. i took mine from a d15b tb just have to get a grinder

DSRxCandyh2bEG

iTrader: (4)

A new TPS would be a good idea or make sure your map and TPS plugs are not backwards... If you are using a p13 ecu, then you could have the EGR,TPS,Map plugs all mix matched...

noremorseracing

most of the time u can tell if u hooked the shorter one up

lockstock

Thanks noremorseracing!! You're the best! That TPS sensor did it. Pulled one from a D16Z3 I found in my local scrap yard.